Format: Internet video on laptop.
My viewing of Deep Red (Profondo Rosso) comes with a number of caveats. The first is that I initially tried to watch it on one of the weird little channels I have access to on the Roku. It was Midnight Movies or Drive-In Classics, or something like that. I actually got through a pretty good portion of it that way, but I found the experience frustrating. On whatever channel that was, the film stopped for commercials every 10 minutes on the dot regardless of what was happening on the screen. Middle of a conversation, right at the moment of someone being killed. Hell, in the middle of a word sometimes. So, eventually, I went to a version I found online which was of lower quality, but was ultimately shown without breaks.
The other caveat here is that Deep Red occurs in multiple versions. The original release is slightly over two hours long, but the American release is about 101 minutes. The excised portions are evidently comedy and romance portions and were never dubbed into English. So, while I may have missed some of the movie, I’m at least convinced that I watched the entire American release of the film.