I was there tonight and it has one TV with a picture of an interesting landscape that cycles through like a telemarketing picture.. anywhere else that showed anything remotely sporty had the French rugby final on tonight
Try Picachilla Taberna Nautikoa. They definitely had both football and cycling on the last time I was in there (so there’s a good chance they’d put the F1 on). It’s a great bar regardless.
There's an Irish Bar on the edge of the old town - fairly near the City Hall. I've never been inside (why would you in San Sebastian) but I tend to find them to be the best places to catch the Rugby or the F1 when you're away.
Just in case anyone finds this again in future.. I actually just got a vpn for my phone and watched it on that, but Reloj Berri, next door to the aforementioned Irish bar (Garagar) was showing it.