The left and right arrow buttons either side of the OK button skip forward 30 seconds and back 10 seconds.
To skip forwards/backwards 15 minutes in recordings - press MIC and say "go forward 15 minutes" or "go back 15 minutes". You can also say "fast forward 10 minutes" or whatever amount of time you want.
To avoid adverts on streamed & on demand say "skip forward three minutes" or "fast forward 3 minutes"
If you press the fast forward button above the '3' key, you have 4 speeds depending on how many times you press the button.
When fast forwarding press the TV button and that will switch off the fast forward arrows etc. For Stop press the back button or pause button, TV button also stops and puts you back to TV.
To play back in slow motion press pause then Fast Forward