Burning off is the low-profile airing of otherwise-abandoned unaired television programs, usually by scheduling in far less important time slots or on less important sister networks. Abandoned programs may be burned off for a number of reasons: * They have to air to meet contractual or legal requirements. * The production company needs enough first-run episodes to meet minimum requirements for syndication. * Their use as "filler" is perceived as slightly more profitable than reruns or other fillers.