@Criptex
I checked RTVS Sport from 23.5E against ITV from 28.2E which is in my list and found RTVS Sport to be only 3.1 seconds faster than ITV.
As ITV is about 4 seconds slower than Globecast from 3.1E I am puzzled at how you got RTVS Sport to be 30 seconds faster than Globecast?
Based on my test figures, I have RTVS Sport as around 0.8 seconds slower than Globecast.
I realise that conditions may vary from day to day but the channels I have benchmarked so far seem to be reasonably consistent in their relative picture speeds.
If I can get both Globecast and RTVS Sport side by side on TV's I will be able to accurately measure it. It might need some cable re-routing though?
Update:
I managed to get a side by side comparison between Globecast from 3.1E and RTVS Sport on 23.5E.
The Globecast pics were breaking up a little but were OK for the test. I found Globecast to be about 0.8 to 0.9 secs faster than RTVS Sport which is consistent with the RTVS Sport benchmark vs ITV from 28.2E.