Good thread, and an interesting, too.
Whether you think films are worse or not depends what genre you prefer. I believe, in the main, films have become more action-orientated: this is especially noticable with American productions. An all-action - gun-ho - pic is fine, but there is a trade off(s), namely in terms of the plot and script.
I'm not a huge film fan, but the ones I have seen I've tended to turn over before the first commercial break (generally speaking). These particular pictures usually have Bruce Willis, Vin Diesel etc....These tend to be high budget, low quality affairs, that for all their explosions and tyre screeching, fail to grip your attention for any long periods IMO.
My favourite genre are typically drama and/or documentary based films. I think that these films, regardless of whether they are factual or fictional, are more palletable and mirror, in certain instances, the tastes of the over 30's, as opposed to pandering to the youngsters (let's face it, they are pretty forgetable....).
In terms of picture quality, I don't have HD TV or Blu-Ray. Certainly DVD certainly justifies its status. We still have VHS and although picture quality isn't a patch on DVD, the sound quality is far deeper and, somehow, more believable.
I have noticed, especially watching round the Brother-in-Laws, that fast motion is a slight issue, and doesn't compare with my CRT set. That's possibly due to him having a less than great set, or me having an exceptional one. Probably wrong on counts.....