What causes the difference between film image quality on TV shows?

This has always baffled me, and as im not a media studies boffin id love to know if im the only one who has noticed this oddity and bear with me cos this is very very hard to explain what i mean.





What causes the difference in filming between shows ie, comparing Coronation St and The Bill, for example. If you watch both these shows, the Bill looks very americanised or film like. Is it the lens or speed at which its recorded or something. Can anybody explain this? Id be most grateful|||I'm not quite sure what you mean, but there's the different kinds (And qualities) of cameras being used for each production, the level of skill behind editing, the intent of the tone of the show, etc. You have to remember that there are differences in production teams behind every tv show, movie, etc--it's not the same camera, the same kind of broadcast, or the same team working for each and every show out there, so there will be differences between each show you watch, no matter how subtle or obvious they are.|||It's the camera lens that is adjusted to make the videotape resemble film (a trick used on and off on US television since the early 1990s to make a taped programme look like it had been filmed). Many shows on Food Network US are made this way (i.e. the various Giada DeLauentiis series) for example.