FCC approves nighttime IBOC for AM

[Bob Nelson]

The FCC voted to allow nighttime IBOC for AM (so much for DX-ing?) and also to allow
"HD multicasting without prior approval from the commission". Does the latter mean
they are no longer "experimental" (HD) and ads can now be run on them?

for details:
http://www.radioandrecords.com/RRWebSite/

see "FCC Unanimous In Approval Of HD Radio Rules"