Spectrum, TCM and 4:3

[CassetteDude]

I have a Spectrum cable box and until May 1, I was able to receive full-frame feed from TCM whenever they showed pre-widescreen movies. When the channel broadcasts older movies, they appear zoomed out. I actually called Spectrum, they even sent a replacement box. I tried all of the different settings, even pressed the "Aspect Ratio" button on my remote numerous times to no avail. I have the box hooked up via phono to the back of one of my VCRs and am watching the video on a CRT TV. Is there a way to bypass the aspect ratio via analog phono so I could actually view the video full frame once more on my VCR and CRT TV? Is there a box that I should purchase?