The sun is surely going to shine for Mayim Bialik. The former 'Blossom' star has been promoted to series regular on CBS's 'The Big Bang Theory.'

Bialik's deal is for this season only and does not call for her to appear in every episode, Deadline Hollywood reports. The previously recurring guest star first debuted at the end of last season and has popped up a handful of times this season.

This move is similar to one made earlier this year with recurring guest star Melissa Rauch. She's also signed as a regular for this season and not contracted for all episodes.

Since 'Blossom,' Bialik has appeared on many shows, including 'Curb Your Enthusiasm,' 'Bones' and most recently 'The Secret Life of the American Teenager.'

In other TV news ...

• TLC has renewed 'Freaky Eaters.' The show, about people plagued with strange eating habits, averaged 1.2 million viewers during its first season. Past subjects have included a man with a cheeseburger addiction and a woman who only eats sweets. Look for the new season next summer. [Live Feed]

• Lindsay Price will guest star on 'CSI: New York.' The 'Eastwick' alumna will play Kate, a woman who bonds with Det. Lindsay Monroe Messer (Anna Belknap) after her traumatic past comes back to haunt her. [Entertainment Weekly]

• Fans of 'The Walking Dead' may have to wait until October 2011 for a season 2. AMC's October Fearfest programing served as a great tool to launch the series, and the network is hoping to replicate that success. Plus, season 2 hasn't begun filming yet. [Live Feed]

BMX star T.J. Lavin, who hosts MTV's 'Real World/Road Rules Challenge,' is in a medically induced coma after crashing in a Las Vegas BMX competition last night.

According to E! Online, the star wiped out when he lost control of his bike when landing a stunt, which knocked him unconscious. He was rushed to the hospital, where doctors put him in a medically induced coma to reduce brain swelling. He also sustained a broken wrist and broken ribs.

The star remains in critical condition.

In other TV news ...

• Simon MacCorkindale, the British actor who stared in NBC's 'Manimal,' died "in the arms of his wife." He was diagnosed with bowel cancer in 2006, and the disease spread to his lungs in 2007. He was 58. [TV Guide]

• David Letterman has tied Jay Leno in the ratings for the first time this season. Both comedians got 0.9 ratings in the 18- to 49-year-old demographic for the first time this season. [Hollywood Insider]

• David James Elliott will return to TV on CBS's 'CSI: NY.' The former 'JAG' star will first appear in January, and there's a possibility he could stick around for multiple episodes. [TV Guide]