Still in place, last I looked, albeit of course now based on the virtual channel number. I suspect it's been low on the FCC's priority list, if only because it really hasn't been tested by anyone lately. The biggest O&O groups (CBS, NBC, Fox) have been shedding smaller stations, not adding them. Without getting deep into the weeds on this one, I suspect only ion would really be badly affected by a change in the UHF-discount rules...and, really, it's not like ion is going to be a monopoly threat any time soon.