Medford is seeking a nonprofit to operate its community access channel. Medford Community Cablevision previously operated the channel until its board dissolved the corporation in 2013. Since then, the channel has been inactive and there has been no public access programming, according to city solicitor Mark Rumley. The city’s two other cable access channels continue to provide educational and government programming. The city has advertised a request for proposals from prospective groups to operate the community access channel. The deadline to respond is Thursday, though that date may be extended, said Louise Miller, the city’s chief procurement officer. The channel will operate out of space at Medford High School that the city plans to renovate for the purpose.John Laidler can be reached at firstname.lastname@example.org.