Programme or Show; Show or Programme

I would like some definitions of both of these words in the TV context.

I have strict views but would like other views before I make mine clear.

Wikipedia puts them under the same roof.

http://en.wikipedia.org/wiki/Television_program

A show - by definition - is a spectacle - a visual event which you sit and watch and enjoy. A programme is a collective statement given to the item of media which is broadcast. A show can be part of a programme, but a programme doesn't have to include a show. EG: ITV Nightscreen is a programme but it isnt a show. Likewise documentaries aren't shows in the strictest sense, nor is news.

A programme is the entire package - credits, presenters, graphics, presentation. A show can make up the majority part of the programme.

I think 'programme' is more formal, and is generally used for more serious, factual programming. 'Show' seems to be used more for light entertainment.

For example, I'd call Newsnight or Panorama a programme, and X-Factor and Look North (Hull) a show.

Unless of course, it's a radio show!