Continuity mistake: In the first basketball scene, the coach says "Big game tomorrow." In the second basketball scene the next day, he says the game is next week.
Continuity mistake: Bud goes into the kitchen, and sees Betty when she has turned color. When she is seen from the back, her hair is still in black and white. When you see her colored face, her hair is brown. Once she is made up to be black and white again, her hair is once again without color.
Factual error: When the townspeople try to undo the changes brought about by David and Jennifer's presence, they declare that only certain recordings will be permitted, including those of Jack Jones. The action takes place in 1958. Jack Jones did not sign his first record contract until 1959.
Answer: To me it never looked like a montage. It was just someone flipping through the channels (channel surfing) until they got to "TV Time" where they stayed to watch the commercial for the PleasanTVille marathon. People (especially before DVRs) sometimes just flip through the channels looking for something to watch, especially if you don't know what's playing on each channel.
Bishop73