If you are a television fan, do not miss a 1hr stop at CBS's Television City. This free attraction gives you an opportunity to view an unaired pilot that CBS is testing out. I've done it twice and seen both a 20+ minute sitcom and a 40+ minute drama/action/suspense show.
While watching, you have a dial in which you continually turn so it registers between a 0 and 100 (0 = you hate the show, 100 you love it). Afterwards, you fill out a short survey on your thoughts about the show and your general television viewing habits.
Afterwards, you get several coupons for BOGO food in the MGM Grande (ice cream hot dogs, etc.). You also get a coupon for a small % off (I think it may have been 10% off) for the CSI Experience which is immediately next door.