Same for me on the latest Last Week Tonight on my PC, and PS4... But fine on my Galaxy Note 4 over WiFi. Watched The Fuzz on Netflix (PC) and that was perfect so I don't think it's my wired network.
Shame as it's the first time I've had this problem
Had this stuttering with Last Week Tonight for the last two weeks and most of Modern Family - Season 6.
The thing that's as equally annoying is that I've seen complaints about this audio stuttering going back months and months in this forum, especially with respect to Modern Family, and still nothing has been done.
Get your act together NowTv. Enough with the copy and paste replies and sort the damn thing out. If it carries on much longer I'm getting rid, and I bet I'm not the only one.
A change in HDMI cable appeared to have solved the problem, but the "stuttering" was once again noticeable when watching "The Mexican" last night. Having all 4 catch-up channels, Youtube and Now TV for £20 is apparently just too good to be true!
I think I'll go back to watching blu-ray and dvd.