GE 23333 Digital to Analog TV Converter Box

My folks say theirs works fine and greatly improves the appearance of broadcast TV on their old style television but it has a weak manual.

This digital converter occasionaly detects channels, but most of the time it says "no channels." I try over and over to scan for channels without success. Even when it says it finds 12 channels, as soon as I exit the Menu area to watch TV, it says "no channels." I thought it might be my antenna, cables, or location in the house so I switched it with my digital LCD TV (19" Ensignia) in another room. It still couldn't find any channels. Meanwhile my digital TV comes in just fine in the location and with the antenna that this device won't work with.
Find something better.