CHNO-FM is a Canadian radio station broadcasting at 103.9 on the FM dial in Sudbury, Ontario. The station is branded on-air as Rewind 103.9 with a classic hits format.
On May 21, 2010, at 12:00 AM without warning, the station dropped adult hits and switched to its current classic hits format as "Rewind 103.9", playing 1960s, 1970s, 1980s and 1990s music with the slogan "Sudbury's Greatest Hits". The first song after the change was Bob Seger's "Old Time Rock and Roll". In 2011, CHNO-FM aired syndicated programs such as the 1970s reruns of American Top 40 with Casey Kasem, the Classic Countdown with Dick Bartley and the Donny Osmond show. The syndicated daily radio show, Daily Dees, hosted by Rick Dees was heard each weeknight. The station, like most classic hits stations, has evolved to playing more 80's and 90's and currently uses the slogan "Rewind 103.9..70's, 80's and More!"