Wide Open West has allowed this for many years. I stayed with WOW for a long time because of that.
I can't believe it's taken Comcast so long to do this. Insane. And likely, I assume just like WOW, the HD will be reformatted if/when it's attached to a different cable box. Small price to pay for the added flexibility.
"Politicians are employees of ours and if somebody does not do the job, we gotta let em go" - Clint Eastwood. Vote for America, vote for Romney-Ryan in 2012.