[W. Knight]

I don't know whether Granada broadcasted in Welsh but it amazed me how much technical wizardry TWW and HTV had to use to broadcast up to three different services to "English Wales", "Welsh Wales" and the West before S4C came along (NB I don't know about TWW/TDC).

They probably did, way back in the early days of Teledu Cymru:

Finally, the one hope that the company had was that Granada produced a useful amount of programming in Welsh. WWN planned to use that material to offset the huge requirement for Welsh-language programming that had been forced upon them. When WWN came on air, Granada promptly dropped the Welsh programmes – probably in a mistake attempt to help WWN by encouraging Welsh-speakers to tune away. Instead it was a crushing blow.

(From transdiffusion.org )

And there's this floating around...

(From avid.miraheze.org , originally captured from ITV in the Face)