It's hard to see beloved characters leave your favorite shows. You have created a bond with them, perhaps even projected their values onto yourself in an effort to raise the self esteem you had before, say, you fell down the Law & Order rabbit hole and started to believe the shows were actual news and not just "ripped from the headlines." But change is inevitable, and sometimes, it works out. Here are a few that worked (at least for me).

1. Current cast of Law & Order: I know, I know, who could replace Lenny Briscoe? No one, really. But the current pairing of Anthony Anderson and Jeremy Sisto as NYPD partners is the best the series has produced. They changed the feel of the show. Perhaps because we're still getting to know them, they are less predictable then previous tandems, and both evoke a certain hard-nosed quality that seems a bit more gritty and real. Plus, Anderson has chops as a stand-up comic, and could easily fill the wisecracker role, if need be.

If everyone was nice, life would get pretty boring, wouldn't it? The television landscape is full of characters who made shows more interesting by doing what they do best: annoying the living hell out of everyone else. There's a lot to choose from, so share some of your favorites in the comments. Below are some of my personal faves:

Major Frank Burns: Alan Alda gets a lot of credit for his acting chops and his portrayal of Hawkeye on M*A*S*H, but Larry Linville deserves just as much, if not more, credit for his role as Frank Burns during the show's early years. Yes, he was a jerk, and yes, he was self-centered and only cared about doing what was in his best interest, but beneath it all was a very real vulnerability, a man who still held on to the childhood notion that the world owed him something. Maintaining that balance is not easy, but Linville did it perfectly.

As my newborn son (part of a twin set; the other is a girl) rests in my arms, I just want to take this moment to thank two cable channels for being there for us as we struggled through the sleepless first night home:  Nick@Nite  and The Hallmark Channel.

Yes, I said the Hallmark Channel!

The Hallmark Channel was on during the 11 P.M. till 1 A.M. shift with four episodes of M.A.S.H . When I was younger I never liked the early episodes with Frank Burns, Colonel Blake, and Trapper John. Now I like those more, as well as the first two seasons where Colonel Potter and B.J. Hunnicutt joined the cast (these are the episodes The Hallmark Channel is showing now). Once Frank Burns left and Charles Winchester joined the 4077th the show got a bit too preachy for me, and Col. Potter began to spout too many southern cliches.