@Nathan140375 If you're already on Sky Q or Sky+HD, which is the usual reason you can switch to Glass but not Stream online, you'll need to call Sky to switch over.
Lounge: Sky Glass gen 2 65” volcanic grey, Denon X3500H AVR. M&K K Series 5.1.2 speakers, PS5 Pro, Apple TV 4K, Sony X800 M2 4K player.
Bedroom: Sky Glass gen 1 43” dusky pink, Apple TV 4K.
