[bkury]

I am noticing when switching channels, the only time that the osd can be invoked by pressing up/down (to cycle through channels, only switching after pressing ok) is right after switching as long as the interval to hide to osd is set it seems.
After that, the channel osd will not appear when using up/down while a channel is playing, although when pressing up-up-up-ok for instance, it will drop me three channels ahead ‘blindly’.

Is this intentional?

No, already fixed it. Thanks for reporting!

It's a small change, so if you don't want to wait for alpha3 you could do it yourself:

• Edit DialogSeekBar.xml, Path = [Skin_Directory] / [YOUR_NATIVE_RESOLUTION] / DialogSeekBar.xml
  

Code:

replace line:
<visible>[ Player.Seeking | Player.DisplayAfterSeek | Player.Forwarding | Player.Rewinding | Player.Caching | Player.Paused ]</visible>

with:
<visible>[ Player.Seeking | Player.DisplayAfterSeek | Player.Forwarding | Player.Rewinding | Player.Caching | Player.Paused | Player.ShowInfo | Player.ShowTime | Window.IsActive(playerprocessinfo) ]</visible>

Note: Live TV is still work in progress and a bunch of PVR related dialogs and features (e.g. Channel OSD / Guide OSD) are not available in alpha2.