Pay close attention to the shows that are heard on WFTC while cruising around San Andreas. Notice that one of the shows is called "Gardening With Maurice". If listened to Chatterbox in Grand Theft Auto 3, you may remember Lazlow (the host) talking to a caller who said "Gardening With Maurice" got taken off the air. Obviously this game takes place further in the past, so "Gardening With Maurice" is still on.