When I try and add a timecode to all media, the timecode starts off at 40:20 right at the start of the program. Is there somewhere to reset the timecode to 0??
Add the timecode effect to the track instead. Or add a blank generated media on a new track above the rest and add it to that event. When you add it to the media in the media pool, it uses the original timecode of the clip from the tape.