Thread:ThomasandFriendsLover/@comment-4965941-20140609175715/@comment-11461515-20140609182810

Usually its because of copyright. The Wiggles didn't write Everybody is Clever, and instead of Lyrick Studios trying to get the rights to that song, they decided to replace it with one they had the rights to. The same goes for Teddy Bear Hug and Numbers Rhumba on Yummy Yummy (1998).