This is probably the biggest slip up I have ever seen! In the episode "Beach Boy Bingo" (the one where DJ wins tickets to a Beach Boys concert) Danny is talking to DJ (i think they are in Michelle's room) and he is asking her why she picked uncle Jesse to go to the concert instead of him. Danny is CLEARLY wearing tan pants. In the next scene when Danny is in Jesse's room, he is wearing jeans! This obviously isn't on purpose because Danny is still wearing the same shirt. I cant believe they missed this!