While I have used a frozen burrito, frozen pizza, or a pot pie.. I've never actually cooked a TV dinner IN MY LIFE. Yeah. Not even a big frozen lasagna. I don't really count a pizza as a tv dinner, and burritos or pot pies are practically snacks.
A ton of instant foods are so loaded with salt that you'll end up with freaking gout from eating them. So I try to cook food.. or I'll get food from the hot bar. It's pretty easy to cook food.. and you can also cook food and put up individual dinner size portions in the freezer so you can have as close to "fresh home cooked" dinner as possible with the same convienance.