I've been working my way through a BFI list- One great film noir for every year . It turns out a lot of these films can be found on Youtube so get you a HDMI cable, hook up to your big screen and you're in fat city.
I got interested in Film Noir through the TCM show "Noir Alley" but sadly my cable provider dropped TCM which, IMO, is a national treasure for those of us who like old and not so old movies uninterupted by ads and presented mostly by knowledgeable film buffs.