In addition to the subtitles bug detailed in another post, I'm now getting audio drop outs (intermittent, complete loss of audio tracks for up to 6 or 7 seconds at a time) that have got so bad it has made viewing NowTV impossible for some shows (Last Ship, Elementary).
An additional bug that I saw for the first time earlier was a show being launched in the app but only the audio plays while the screen simply has a blue screen with spinning loading icon. Hitting back on the remote takes you back to the main menu but the audio track continues to play in the background! The only thing that stopped this was to launch another app, Netflix, and then return to NowTV.
I am seriously hoping for a new version of the LG app soon as this one is riddled with bugs. BTW, not a bandwidth issue (I'm on an 78mbps connection).