It's too bad that the background images Entre looks for are gifs rather than jpeg files. After reading Fred's post, last night I tried to create some "snazzy" backgrounds, inclusive of photos, text and/or graphics (gradients and the like), as new background images to replace the "plain", stock files of the Entre. They look great on my computer monitor, but once I save them as gifs of the proper size (720x480 pixels) and upload them to the Entre, they turn absolutely terrible blown up on my 65" RPTV. Smooth color areas are OK, everything else turns into a garbled, pixelated mess. Maybe I am doing something wrong when saving/converting files. I am using Photodraw as image editor.
Regardless, this "gem" of a find by Fred could turn out to be a lot of fun for the non-artistically challenged. Thank you, Fred.