My Bad
I just looked at the pix and didn't read the ad copy.
At 38" wide, the CRT could be a decent, watchable size.
I'll bet a good yank would get the door open, or prying it carefully. It probably has one of those metal catches with the concave portion mounted to the cabinet and the spring-loaded ball mechanism (which is probably frozen) on the side of the door. They're notorious for being stubborn.