[Daavid]

PVR will include:
LiveTV - Record using backend, if no backend option to add show to sickbeard/couchpotato queue
Internet,Youtube,Rss - download to file.

@Redkiller223, set a channel rule to random now its shuffled...
As for scheduling...
Am I wrong to believe this can be done already? Last I remember jason102 added a pretty robust level of rules that make almost any configuration possible.... Is something not working?
When I get time, I'll look into it... But have you tried:

Channel 1 - hidden, Seinfeild
Channel 2 - hidden, Law and order
Channel 3 - hidden, interleave channel 1 and 2
Channel 4 - Interleave channel 3 at 5pm

I have not tried that, thanks for the tip. I will put it together once I get my openelec system fully operational (should be a within a few days.) I think the only thing is like Daavid has said it works, but not as elegant, but as long as I can get it done, than that is great.

Not to belabor this, But correct me if I am wrong on if my understanding of the PVR is incorrect, assuming you have a backend system to record.
- You can schedule via EPG any recordings.
- What you are watching now, no ability to pause or rewind.

Pause and rewind depends on your XBMC PVR backend, no backend... no PVR features for LiveTV (except for queuing to sickbeard/couchpotato).
As for scheduling via EPG, it would be very basic scheduling (no repeat or weekly functions)...

referring to "not as elegant" for channel setup...
There won't ever be an elegant solution; I can't began to assume all the infinite channel combinations users would want... So I could never write code to automate it.
All I can do is make sure the rules in place work, and hope that users share their experiences to help assist others who want to create complex lineups...

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@Redkiller223, set a "random" channel rule for the youtube channel, now its shuffled

As far as elegance for scheduling and the idea I had. It was actually BCTs from the old TVTime that made me think of the rating setting. Its similar in that BCTs are doable using interleaving rules, but your latest solution knocks it out of the park. It becomes so much easier to setup something that could be otherwise hellishly time consuming.