CBS announced a deal to renew hit sitcom The Big Bang Theory for another three years through the 2013-14 television season.

The show, which stars Jim Parsons, Johnny Galecki, Simon Helberg, Kunal Nayyar, and Kaley Cuoco, has always been a hit with geeks for its witty, scientifically accurate dialog, and frequent references to pop culture. However, the last season has seen a huge ratings boost coupled with more media attention — making a long-term renewal a no-brainer for the studio.

It also helps that 2010 was a particularly good year for Parsons, whose portrayal of Sheldon Cooper won not only a 2010 Emmy for Outstanding Lead Actor in a Comedy Series but also a Golden Globe win this year for Best Performance by an Actor in a TV Series, Comedy or Musical.

Today has brought news from a variety of sources that the SyFy Channel has canceled its low-rated but very excellent (in this humble viewer’s opinion) series Caprica.

Speaking about the cancellation, Mark Stern, Executive Vice-President of Original Programming said, “We appreciate all the support that fans have shown for Caprica and are very proud of the producers, cast, writers and the rest of the amazing team that has been committed to this fine series, Unfortunately, despite its obvious quality, Caprica has not been able to build the audience necessary to justify a second season.” The show will stop running new episodes as of this week’s (October 26th, 2010) episode, with the remaining five episodes of the season to run at some point early next year.

I love TV theme songs. They can be iconic, memorable, and nostalgic all at the same time. Some tell the tale of the show, some work only in context of the show, and some are actually better than the show they are attached to.

College Humor has a great video of 22 television theme songs being played in 7 minutes and I thought all of our faithful TV watchers would enjoy it. Watch the video — 22 TV Themes in 7 Minutes — here below.

It’s not just any 22 theme songs, it’s some of the best like The Office, Firefly, That 70’s Show, and Family Guy.

If you like this style, check out the original, 32 Songs in 8 Minutes. Both videos were done by Fredrik Larsson (and only him, no matter how many of him you see in these videos). Check out his site at freddegredde.com.