They only need a Bell satellite signal so a dish, not a subscription, is required. To summarize:
1. The 9200, 9242 & 6141 will record
digital (ATSC) OTA, not analog.
2. A dish pointed to the Bell satellite(s) is required.
3. No OTA guide data is provided, nor is it available from any source I am aware of.
Considering the limitations, it's probably not worth using a Bell PVR for OTA unless you already have one. There are other solutions, such as a dedicated
OTA DVR or
HTPC.