Also known as TDA, TV Download Addiction is when someone downloads vast amounts of one or several TV show episodes or seasons and becomes addicted to watching episodes in great periods of time. This is due to the ability to watch multiple, consecutive shows without commercials or days in between.
"Hey dude I haven't Tommy in a few days. Where's he been?"
"Oh you haven't heard? He's has TV Download Addiction. He caught TDA after he download all the seasons of Dexter so he won't be hanging out for a while."