Coincidentally, Mike Mazurki was in both movies, playing the villain in Dick Tracy and a henchman in THBaM. (I figure it's a coincidence because Mazurki doesn't strike me as a prominent enough actor for TCM to build a theme day around.)
And he was in Murder, My Sweet
, which I believe was on the schedule around this time. Are you sure it's a coincidence?
Although I thought he was in The Big Sleep
(also on), but sources say otherwise.
The opening credits say Bell Book and Candle, no comma anywhere in sight. Everywhere else it's written with at least one comma.
Since this discussion, I've started thinking of it as Bell Book and Comma.