I believe you are right. The current 'films' thread is hardly used and is arguably redundant.
But I would repeat my plea that posters reference the channel (and more usefully the program name in follow up posts - after the first posy it is difficult to know what posters are lauding or criticising.
I would prefer two threads. One for series and one for single standalone programs. I think one thread will get very cluttered.
And the third for films seen at a cinema
Just watched a couple of the new Linley. (iPlayer)
Good stories but the spark/friction between the two main characters is missing as opposed to the original series.