I've bought a lot of TV episodes on iTunes, most of which I have no problem playing on my 160gb ipod classic. But about 15 of my purchased TV episodes will not sync onto my iPod. When syncing my iPod, I recieve an error message that states that the "video format is not supported by iPod". Why is this? Some episodes will sync and some won't? I'm pretty upset, iTunes... The only reason I bought these episodes with the sole intention of watching them on my iPod.