Dear Mark:
When you watch Texas Hold'em on television, the players always flip over their cards when going “all in.” I've been told that technically you don't have to do that, and instead, verbally say you're “all in,” and just wait until the end of the hand before you show your cards. Are they doing it wrong on television? Phillip G.

In tournament play, Phillip, which is what you are watching on TV, you are required to turn your cards over. With a cash game, it is optional.