Let's hope the picture quality is 1080p as the current All 4 quality of (seemingly) 240p is bloody awful.
Yes - All4 is unwatchable on a decent sized TV screen. Whilst almost every other broadcaster streaming service hits at least 720p - All4 is still stuck at sub-SD quality.
Hopefully the new Channel 4/Sky deal (which tied into C4 getting F1 highlights from Sky, in return for Sky getting more C4 on-demand content) means that Sky viewers will get all the All4 content (currently you only get content that has had a linear broadcast) in 1080i. This is particularly important for 'Walter Presents' stuff where often only the first episode gets a linear outing.