Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
First, you just need to make sure that your DVD's and home movies are added to your iTunes, and then you tell iTunes to sync them to the TV. Just like an iPod.
If you are asking HOW to convert your DVD's into something iTunes can handle, there are plenty of other threads that already cover that.
 
You cannot add DVDs to iTunes.

Apparently you were so eager to make your snarky comment you failed to read the second part of my post.

"If you are asking HOW to convert your DVD's into something iTunes can handle, there are plenty of other threads that already cover that."
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.