Get to the part where he's shaving and taking a shower. He starts singing the Gilligan's Island song. That show wasn't created till late 60's, and he got sucked into the game in 1962, remember?
Actually he does not get sucked into the game until 1969. It says during the movie that it was 1969 when they started the game, and that would be 26 years later which was also mentioned in the movie. 1995 - 1969 = 26 years
Actually, It was 1995 when he sang the Gilligan 's Island Theme Song Be-cause He got sucked in to the game in 1969 and 26 years later Judy and her brother(the little kids) played the game and Judy's brother rolled the dice to the number that Alan would get out of the game.
Charlie, when he sings the Gilligan's Island song, it's soon after he comes out of the game. The person who submitted this meant he had no time to watch tv to hear and memorize the theme song. But I also think it was 1969.