A decent strategy for the Channel Surfing game is to treat it like tic-tac-toe: go for the four corners first. In all the times that I played it, I never saw them connect in a row, meaning all three of the "Please Stand By" screens never touched diagonally. If you get two as corners, then that means the one in between them is safe. I also noticed that a lot of the time two of them would be touching in someway and the third would be slightly separated, but never extremely far away. I won the most amount of games using this strategy. Also, keep your choices consistent. If you get down to the last two screens and they're the same two TVs that you had to choose from on your previous fail, choose the "wrong" screen again. It's an old standardized test strategy: you are better off filling in the same letter all the way down the test than you are Christmas tree'ing it. Stick with what you choose (left or right, top or bottom, high, middle, or low). Useless piece of information: C is the most commonly used letter for multiple choice answers. At least it was when I was in high school. lol
For the Crypt game, I noticed one pattern, but I don't think it's consistent. I won two or three times by selecting keys using variations on this fashion: Yes, No, Yes, Yes, No. Again, it does seem to be the more random of the two released so far.
Always choose line 10 and always choose the tombstone farthest to the right.