Having recently completed my Jury Service I found it fascinating how the system works.
I sat on a criminal trial which was pretty much sealed as the guy was on cctv. I then sat on a civil case between a lad and the Police where he was sueing them as his arm had been broken during his arrest.
Both were held in public.
If televising the proceedings discourages one person from wasting court time it would be worth it
On the other hand it might encourage people not to try and weedle out of Jury service.