RAW/SD HD replays
 

For those interested, from PWInsider:

As a reminder, on October 2, Smackdown replay will replace the NXT replay on the Universal HD network. Of course Smackdown will become an NBC Universal show on 10/1.

The new Saturday schedule on UHD schedule is as follows:

7 p.m. - Raw

9 p.m. Smackdown

11 p.m. Raw

1 a.m. Smackdown

How do they handle the over runs on the shows?

I think the commercials are cut out

They aren't cut out - but they are VERY short breaks (mostly just for some NBC owned shows)