Katie Couric spoke about colonoscopies, virtual and otherwise, today as a guest on 'The Doctors' (weekdays, syndicated). Host Lisa Masterson, an OB/GYN, said she always counsels her patients to get colonoscopy. She asked if it was OK to try to get patients to do a virtual colonoscopy first, even if the benefits weren't the same as the traditional procedure.

"As for the virtual colonoscopy, the latest test shows it can be as efficacious as a traditional colonoscopy," said Couric. She added she thought the preparation for the procedure is often worse than the procedure itself. "Because the fact that they call the drink that you drink 'go lightly' is such a joke, because it does not make you go lightly. I can tell you that from personal experience."

Point taken, but that's probably not the best angle to take if you're actually urging people to get a colonoscopy for their health.

With Katie Couric's contract up soon, there is speculation that she might be looking to leave her gig as anchor of 'CBS Evening News.' David Letterman decided to get to the bottom of it when he had her on 'Late Show' (Weeknights, 11:35PM ET on CBS), but Couric played it coy.

"I'm figuring out what I want to do and I'm just sort of in the process of, you know, figuring out the future," she said. She made it clear, though, that she has no contractual ties to CBS after this summer and could move on if she chose to.

So Letterman tried another tactic, by letting her know that the evening news anchor position isn't something you walk away from. He listed many of the greats that have come before her like Brokaw, Cronkite and Jennings.

A couple of weeks ago, we gave you the list of the 100 most memorable female characters in TV history. There was lots of talk and conjecture among the readers about who we missed and who shouldn't have been there, which is why we do these lists to begin with.

But there were a fair number of people who asked us "Where's Ellen DeGeneres?" or "Where's Oprah?" among others. Well, since we were talking about TV characters and not real people, those folks had to be left off the list (And, yes, we know Ellen played a pretty important TV character ... more on this later.)

Fear not, loyal TV watchers. We've got a list for those of you who want to celebrate women who put themselves out there, have created a brand, or have made significant contributions to the current TV landscape as themselves and not a fictional character.

The list isn't in any particular order; after the first few obvious names, the rest of the women on this list come so close, it's hard to rank them. So we'll just start with TV's most accomplished woman (hint: her name starts with an O ... and it ain't Omarosa) and go from there.

'CBS Evening News' anchor Katie Couric has held some big feet to the fire during her career, like Sarah Palin and George Bush. Now she's gunning for some small feet -- preschoolers.

In a video for Funny or Die, Couric investigates the Sillies, a condition that affects millions of children every day. To cure these episodes, parents and teachers usually have the infected children jump around, shake their arm, kick their feet, etc. However, with her bulldog instinct, Couric digs into whether the Sillies are real thing or just a ploy by the young to misbehave.

While the veteran newscaster is known for her composure and playfulness alike, few have seen Couric do something this goofy. She proves her sense of humor and willingness to poke fun at herself, since the video essentially spoofs her career. The expressions alone she gives while interviewing the children make this a viral must-see.

If Katie Couric decides not to continue as anchor of 'The CBS Evening News' after her contract expires in June, she'll have a new career to fall back on: author.

Random House will publish an advice book compiled by Couric over the past year called 'The Best Advice I Ever Got: Lessons From Extraordinary Lives,' The New York Times reports. The news anchor said she was inspired to write the book, which comes out on April 12, after speaking at the Case-Western Reserve University graduation ceremony last May.

Couric told the Times she wanted to "get 22-year-olds to think about their future possibilities," so she compiled essays and poems from people like Sheryl Crow, 'Modern Family' star Eric Stonestreet, Chelsea Handler, Yankees star Alex Rodriguez and more.

As the violence between pro- and anti-government protesters in Egypt has escalated, several well-known TV journalists covering the clash have come under attack.

CNN's Anderson Cooper was punched in the face repeatedly by a pro-Mubarak mob, and now CBS's Katie Couric and ABC's Christiane Amanpour have also had frightening run-ins with angry protesters. Fox News correspondent Greg Palkot was severely beaten, according to Fox News.

"For the first time in the last few days you can really feel what dictatorship means," said CBS correspondent Lara Logan.

USA Network is on fire -- for the fifth year in a row. The cable channel was tops among viewers 18-49, 25-54 and overall viewers.

According to Variety, returning shows 'Royal Pains,' 'Burn Notice' and 'White Collar' helped elevate the network above the strong competition.

'Royal Pains' grabbed an average of 7.3 million total viewers and 3.09 million in the 18-49 demographic. 'Burn Notice' had 6.59 million viewers and 'White Collar' had 5.37 million. New series 'Covert Affairs' averaged 7.05 million viewers with 2.96 million in the 18-49 demographic.

In other TV news ...

• 'Survivor' ratings have hit a series low. The finale started with 17.2 million viewers but dropped to 13.3 million. In the 18-49 demographic the series pulled in 4.1 million, 7 percent below last fall's finale. [TV Guide]

• Katie Couric and CBS News are discussing a pay cut and expanded role for the anchor. Couric's party and CBS reportedly both agreed Couric must take a pay cut in order to stay at the network. Besides hosting 'CBS Evening News,' Couric also does assignments for '60 Minutes.' [Hollywood Reporter]

• NBC is posting entire fall runs of episodes online. The network has beefed up its website and Hulu with episodes of 'The Event,' 'Parenthood,' 'Outsourced' and 'Law & Order: Los Angeles.' Episodes of 'The Office' and '30 Rock' will also be streamed through the end of year, but in five-episode chunks. [Variety]

If Katie Couric decides not to re-up her CBS News contract when it expires in May, she has plenty of other options.

According to The Hollywood Reporter, the former 'Today' show host is being approached by multiple syndication companies to host her own daytime talk show.

"She could get in there and command a lot of money," one syndication executive said.

In other TV news ...

• 'Dexter' is getting a new showrunner for its sixth season. Scott Buck will take over for Chip Johannessen, who ran the show in season 5. [Deadline]

• Piers Morgan said he wants the first guest on his new show to be President Barack Obama. The British journalist will take over Larry King's old time slot on CNN starting in January. [Reuters]

• ABC is developing an American adaptation of the popular Canadian show 'Being Erica.' The series, about a time-traveling therapy patient, stars Erin Karpluk and currently airs on SOAPnet in the U.S. Karpluk said she would like the new version to star a male protagonist. [TV Guide]

On 'Lopez Tonight' (weeknights, 12AM ET on TBS), Justin Timberlake dished about seeing an unexpected couple on the dance-floor: Oprah Winfrey and Katie Couric. While talking with host George Lopez, Justin said that the weird thing about going to lots of award shows was seeing people getting a little, well ... weird. "You see people that you just wouldn't expect ... [and you're] like -- oh. ... Oh!"

Once such unexpected thing: seeing Oprah and Katie dancing together during an after-party at the Metropolitan Museum of Art. But were the two female journalists "bringing sexy back" (so to speak) while they were out on the dance floor? Well, sort of.

In the annals of "unexpected blind dates," Katie Couric plus Bob Saget is about as unexpected as Jon Stewart and Jennifer Aniston. But both of these things actually really happened. It just goes to show that romance can bloom anywhere. (Well, sort of.)

On 'The Late Late Show' (weeknights, 12:37AM ET on CBS), Ms. Couric discussed her first date with Mr. Bob Saget -- famous for being the star of 'Full House,' the host of 'America's Funniest Home Videos' -- as well as for being a surprisingly dirty stand-up comedian. Host Craig Ferguson was intrigued. Did things work out on the date?

The fact is simple: Americans love zombies and quality character dramas. Proof? 'The Walking Dead' season finale pulled in 6 million viewers on Sunday night.

According to AMC, the first season finale brought in a staggering 4 million viewers in the 18-49 demographic. Repeated airings of the finale brought the combined total to 8.1 million viewers.

Unfortunately, we'll have to wait until at least next summer -- or even October -- for season 2.

In other TV news ...

• ABC's 'The Middle' will get two extra episodes this season. The network announced today that it is bumping the sophomore show's episode order up to 24. [TV Guide]

• Joel McHale isn't letting his day job on 'Community' get in the way of his hosting duties for 'The Soup.' The comedian/host/actor has signed on to the E! show for two more years. [Deadline]

• More details have emerged on Katie Couric's 'Glee' appearance. The news anchor will dance to the song 'Tea for Two' with Mr. Schuester, Jane Lynch confirmed. [Access Hollywood]

It's time to meet the parents on 'House' -- and the rest of the family, too.

When Cuddy brings home boyfriend House during a January episode, not only will the doctor meet mom and dad, he'll meet Cuddy's sister as well. According to TV Guide, sis will be played by 'Californication' and 'Nip/Tuck' actress Paula Marshall.

Marshall joins Candice Bergen, who's been cast as Cuddy's mom.

In other TV news ...

• Rapper Nelly will appear as himself in an early 2011 episode of '90210.' The rapper will pop up when Navid and Dixon somehow get involved in the shoot for his 'She's So Fly' music video. [Movieline]

• It's rumored that Terry Wood will take over programming at Oprah's OWN network. Wood, who brought Dr. Phil and Rachael Ray to the air, quit her job at CBS earlier this week. [NY Post]

• A suspect in the murder of Hollywood publicist Ronni Chasen killed himself when police served him a search warrant last night. He was a person of interest in Chassen's Nov. 16 shooting death. [The Hollywood Reporter]

This just in: A news anchor on a major network could soon expand her repertoire to scripted television.

If all goes according to the 'Glee' producers' plan, CBS Evening News anchor Katie Couric could suit up for an appearance during the Fox show's much-hyped post-Super Bowl episode. According to Deadline Hollywood, Couric is "in talks" to cameo in the Feb. 6 episode.

The appearance would reportedly feature Couric in a scene with Jane Lynch. One of the episode's plots involves the Cheerios competing in their regional cheerleading championships.

Wow! Who knew Katie Couric was capable? On 'The Wendy Williams Show' (weekdays, syndicated), Couric explains a photo of her cutting loose at a party, in which she appears to be doing something suspiciously reminiscent of a booty dance.