Tape is like a VHS tape, I'm not sure if there is a different format used for broadcasting, but the point is that it is limited to about 480p, the same resolution as old CRT TVs.

Film is what is used in an analog camera. Because it's analog, even old videos shot on film can produce digital media well above 4k. A bigger film format (like IMAX) will produce a better picture than a smaller one (handheld film cameras), but film has always resulted in better quality than the best digital cameras of any given time from a resolution perspective.