Saban and TV are completely different people. Saban has always been about Saban. I remember the AD at Mich St. saying, "What does he want, I have given him everything he asked for and he's still not happy." Every place for Saban was a stepping stone until the Peter Principle kicked in and he was smart enough to understand his place.
Saban never loved or enjoyed anything, he was about hating to lose and intimidation. You never hear former players talking about Saban the way TV's players talk about him. TV loves the game and I really think he loves Tennessee.
Simple fact is, TV was made an offer he couldn't refuse.