Are some of your set boxes on a SD television, or old analog set seeing digital SD, versus a HD television?
Some networks (or program owners) are charging for a SD version versus the HD version since there are far fewer vewers using old analog or standard digital televisions with a 4:3 screen instead if 720p or 1080p widescreen televisions.
No, all TVs are SmartTV, HD compatible. I don't know if the extra cable box the TV is attached to is HD though as it states "Digital converter" on the bill under Additional services.
Your reply is confussing. "Smart" tv's contain apps to get programing like: You Tube, Neflix, etc. directly over the internet (no cable-box or service needed).
Back ro your original post. If you have an old analog tv, or a digital tv (4:3 screen), instead of a wide screen (16:9) HD tv (either 720p or 1080p) you normally watch only a SD version of shows. It seems that fewer people are watching SD shows on cable and they are unprofitable.
So when I quickly typed Smart TV, HD, I meant these are all new, HD TVs and are not as you describe here.
When I checked today, a show I would like to view from on Demand service is showing available on all sets.
It is inconsistent.