I just noticed that there's no ITV or Channel 4 catchup apps in the On Demand section. So having missed a show last night (there's a gap in the guide where the show is supposed to be - yet another different problem) I went to see if I could watch it on a catchup app and found there isn't one.
Live: Alongside on-demand, All 4 enables you to live stream all Channel 4 TV channels, including Channel 4, More 4, E4, Film 4 and 4 Seven. Head to the 'Now' section of All 4 and you can stream these networks over wi-fi internet, or mobile data if you're using a smartphone or tablet, although be wary of incurring excessive data charges - you
Film 4 On Demand allowed you rent films to watch online via live streaming video or download – ideal if you plan to watch while you are on the move. Film 4 On Demand is an on demand film service from Channel 4. UK Roku Channels: November 2013
All 4 – Apps on Google Play
Volunteers are available by phone Monday through Friday, 11A to 1P. Call 615-353-CALL (615-353-2255) channel 4 catch-up. — Digital Spy