Some days I do and other days I don't seem to be saying no to the same questions over and over. I find that days that we don't turn on the TV at all, my daughter is not as fussy and whines less. Once she gives up on asking me about the TV, she'll play with her toys and be as happy as can be. I think "sticking to your guns" is the trick that I use the most. It's not a new one, but it is effective.