NBC TODAY ANNOUNCED the addition of a new medical game show to its fall schedule. The game, tentatively titled Three Cardiac Monte, is based on the street game, three card monte. The object of the game is for contestants to pick which of three patients receiving a transplant at a different major hospital every week is actually being fitted with a month’s supply of cotton balls instead. The show is expected to take over the slot currently occupied by Frasier when that show finally goes off the air after this season.