I'm sure the main commons cameras are better quality than we've been seeing today. Some of the pictures looked sub-sd today though.
I agree, the picture quality from inside the Commons chamber looked a lot worse than the pictures you see during normal proceedings.
If you look at today's programme from around 1:24:00
you'll notice the difference from the walk down the corridor into to the chamber, then inside the chamber. Then cutting back to the Royal Gallery, the differences are very noticeable.