Gord Lansdell is reporting on nwbroadcasters.com that CHQM-FM is now broadcasting TSN 1040 on its HD2 channel and TSN 1410 on HD3; as always, HD1 is "the mother station", CHQM-FM itself.
I haven't been keeping careful track of all points East, but I think this represents Canada's first "permanent" use of an HD3 channel with IBOC technology. I'm sure that Dan Sys can correct me if I missed one.
Speculation previously was that Bell would put one of the TSN AM stations on each of its FM transmitters. This use of HD3, of course, is a less expensive approach, and it also leaves room for some unique HD service on Virgin 94.5.