No, because it wasn't a true channel. It took two 6mhz "channels" on the cable system in that it occupied two 6mhz wide spots whose frequencies are in the cable

No, because it wasn't a true channel. It took two 6mhz "channels" on the cable system in that it occupied two 6mhz wide spots whose frequencies are in the cable TV bandplan, but the actual modulation of the RF would not have been recognizable as anything other than noise to NTSC tuners