We have known for some time that KIMT-DT (CBS. Mason City, IA) has been operating at 200KW and had paperwork approved by the FCC to increase that to 800KW.
As of later Tuesday (3/10/09), reports began to surface on the AVS Forum's Rochester, MN - HDTV thread of increased signal strength readings. This most likely means that they have increased their output power to 800kw. Hopefully, that will fill up most of KIMT's analog footprint.
In the Rochester market, all that's left is for KAAL their act together with digital channel 36 and for the analog channels 3, 6, 15 and 24 to shut off on June 12th. It would be nice if KTTC increased the output power, but don't hold your breath on that one.