Wikipedia
KSLM-LD
KSLM-LD is an affiliate of the Retro Television Network. Licensed to Salem, Oregon, the station covers the Willamette Valley, within the Portland, Oregon television market. KSLM-LD is a digital station licensed at 15 kW on channel 27 that was activated on 3/15/10 . The transmitter is located in the Eagle Crest area in the West Salem hills in Polk County.
The change in channel was prompted by interference from another station operating on channel 16, KORS-CA. At the time KSLM began operation, KORS was licensed on channel 36. KORS was subsequently granted a construction permit to operate on channel 16 from a tower in Portland.