Toddler from Hell

Who took my son and how do I get the real one back? The last few days Caleb has become a mega brat and I have no idea how to counter act it. He refuses to do ANYTHING AND EVERYTHING that he is told or asked to do. Yeah, yeah, yeah....I can hear everyone out there laughing because he is 2 and that is what 2 year-olds do. But seriously, there has to be some strategy that addresses things I can do instead of standing there with my mouth hanging open. Cause I know that ain't workin'!

Here's the scenario:
Me: Caleb, come eat dinner with Mommy and Daddy
Caleb: NO! Me watch Blues Clues.
Me: I paused Blues Clues and you can finish watching after dinner.
Caleb: NO NO NO NO NO NO NO
Me: If you don't come eat dinner right now, I am going to turn the TV off for the night.
Caleb: NO NO NO NO NO NO NO
Me: (shuts off TV)
Caleb: (begins screaming fit)
Me: (goes and sits down at the table to eat dinner)
Caleb: (continues screaming fit)
** 30 minutes pass **
Me: (still trying to finish dinner, but now my nerves are shot and I am beginning to think about tranquilizers....for me)
Caleb: (still whining about wanting Blues Clues and won't come to table)
Me: Caleb, you can choose not to eat now, but if you do then you can't have anything else. No snacks, no ice cream, no chocolate.
Caleb: Me go upstairs.
Me: Do you want to go upstairs and put your pajamas on?
Caleb: Yes.
*** we go upstairs and put pajamas on ***
Caleb: Now me eat ice cream! (Note: usually if he asks for ice cream we tell him he has to get into his PJs first)
Me: No, since you didn't eat dinner you don't get ice cream or candy or chocolate or crackers.
Caleb: Go downstairs.
*** we go downstairs and he immediately starts eating his VERY cold dinner with enthusiasm. Then he gets to watch Blues Clues and have a small amount of ice cream ***

Did I do the right thing? Should I have forced him to sit at the table with us? I tried not to give him attention as a reward for bad behavior, but it is hard to ignore him in full tantrum. He ended up getting EVERYTHING he wanted, from the TV show to the ice cream, all because it ate 2 pieces of chicken and 4 green beans. Grrrr.....who makes up the rules for these dang situations anyway. I just wish I was given the play book before the battle even began.