TELEVISION. CABLE. DENVER City council's cable decision challenged by United Cable Television Corporation. RMN Je 12, 1982 p.8 Citizens group approved to circulate petitions for cable TV free-for-all. RMN Je 23, 1982 p.12 United Cable Television Corp. will sue city over cable pact, RMN Jy 15, 1982 p.6 Denver Election Commission throws out petitions seeking referendum on cable franchise. RMN Ag 4, 1982 p.4 United Cable Television Corp. files suit to overturn decision barring citizen vote on franchise. RMN _ Ag 12, 1982 p.4