Below is a scan of rcn channels as of 12/5/2018 that I receave and don't have drm enabled. I preformed the scan using a Hauppauge DCR-2650(HDHomeRun PRIME would also work), a simple phpscript, and ffprobe(part of ffmpeg). I only pull out some of the data into the table below but if you want to look at all of the data that's pulled out you can at channels.12.5.2018.json. I also ran a scan in 2017 can you can view that here

Channel Num	Channel Name	Video Codec	Height	Width	FPS	Audio Codec	Audio Channels	Audio Bit Rate	Estimated Bit Rate Mbps	Frequency	Sub Channel
Channel Num	Channel Name	Video Codec	Height	Width	FPS	Audio Codec	Audio Channels	Audio Bit Rate	Approximate Bit Rate	Frequency	Sub Channel