Re: the variety of formats received from distributors, interesting but unfortunate. Though in the case of In Vanda's Room TCM could have fixed the stretch in broadcast. But it's not the case here? Possibly the blow-up/HD up-res requires a bit of lost image area? What's that called, underscan? Overscan?
As for watching it on the SD channel, because I have an HD TV, it's small within a black field. I used to be able to take the S-video out of the cable box and record to DVD or VCR, then watch that in full screen pillarbox. It was a reasonable solution but my new cable box doesn't have S-video out, just component and HDMI. There's a solution from monoprice.com that downscales the component, but it still includes the entire HD signal to start with, so you get all of the black area around the SD broadcast. With every step forward, 2 steps back. Sigh.
Come to think of it, if they're broadcasting the properly formatted 4:3 version on the TCM SD channel, then it probably is TCM's fault. They've been able to take other SD movies and blow them up properly with pillarboxing, so why not this?
Thanks, folks.