All CSI series and 24 are shot on 35mm film then telecined to HD. They're not shot on HD cameras, so there's no need for producers to attempt to achieve the "film look". Some sitcoms such as Two and a Half Men are shot on 35mm film.
There's no indication that any major American series and sitcoms will be moving to digital bandwagon any time soon.
http://motion.kodak.com/US/en/motio..._Boyce_talks_about_formats_for_television.htm
Film is still far superior to current HD technology. Even Super16 produces a superior picture in terms of actual spacial resolution compared to Full HD.
Digital productions can try emulate the look and feel of film, but film has a specific look that is native to its technology and stock and it's that specific look that producers want.
I didn't know that CSI and 24 used film. I do know that for many of the in car shots they use HD video cameras shooting progressive video, either the HVX200 from Pany or something else. They had the actors handle the cameras themselves.
Californication, for example, is shot with a Sony CineAlta f900 HD 24p video camera. The opening is shot on 16mm film but the majority of the show is video. They could have shot it in 60p even but to get the film look, they stayed at 24p.
However, most series use video. They can also shoot 4K video as well. I know some motion pictures are shot like that - many European productions - and you can't tell that they were recorded on video and not on film. It is possible to correct for that in a high end colour correction app like Color/DaVinci 2K.
You'd have to be a professional to be able to discern the differences.
BD showcase titles like Planet Earth use HD video cameras - they used Pansonic VariCam HD for that series.
The results are anyway that film is 24fps and if you watch it in a cinema the motion won't be smooth. The 100Mhz - 200MHz or 144p look will give you more of a video look than film. Hence it's great for 99% of the TV series out there, sport, docu's and some films but if you're a film buff you'll prefer higher contrast, wider viewing angle, better colour reproduction and SIZE to just MHz. But hey, if you can get everything, and switch the feature off, go for it.