PREV - switch between two tv channels -don't work in new PikTV

[Sergiu]

In the old PikTV I could switch between two favorite tv channels.
Now, I don't see how could I do this thing.
It was a very useful facility.

[Nighthawk]

There appears to have been an update to the PikTV software today that enabled previous channel. 

[KHR]

Thanks @Nighthawk  - you beat me to it! 

@Sergiu - if you don't have auto-updates enabled in the Google Play Store, you will need to download the update manually for this functionality to kick in.