When I was little, I had a neighbour who owned two VCRs so she could make... erm... "archival back-ups" of her video collection (and the video store's as well). I thought that if you played a different movie in each one, the characters from both would interract on screen like some sort of weird hybrid film.
A childhood belief about tv

others believed things like this
- I thought if you point the video camera at the TV then both the video camera and the TV will explode.
Anon - When I was a child I used to believe that when I played video games my real world changed like the game. — J
- My sister thought that she could video me by simply inserting the VHS tape into the VCR sideways.
Anon - I used to believe that the video clip are realized in one time and the singers are singing with to the music Anon
- When I was younger, I saw Madonna's video for "Material Girl". I thought she was singing "I'm a Cheerio Girl"!— Greg
- I thought there was some video games so hard that if you died on them you also died in real life!— Kakuri