Table:
text: TNQ
Main Transmitters
Main Transmitters
Region_served City Channels_Analog_Digital_ First_air_date ERP_Analog_Digital HAAT_Analog_Digital_1 Transmitter_Location
Southern Downs Warwick 39 ( UHF ) 3 52 ( UHF ) 31 December 1990 600kW 500kW 301 m 301 m Passchendaele Ridge
Townsville Townsville 7 ( VHF ) 3 36 ( UHF ) 1 November 1962 200kW 200kW 612 m 655 m Mount Stuart
Wide Bay Maryborough 33 ( UHF ) 3 9 ( VHF ) 31 December 1990 1000kW 60kW 646 m 646 m Mount Goonaneman

text: TNQ
Main Transmitters
Main Transmitters
Region_served City Channels_Analog_Digital_ First_air_date ERP_Analog_Digital HAAT_Analog_Digital_1 Transmitter_Location
Cairns 2 Cairns 10 ( VHF ) 3 6 ( VHF ) 7 September 1966 200 kW 50kW 1177 m 1190 m Mount Bellenden Ker
Darling Downs Toowoomba 41 ( UHF ) 3 40 ( UHF ) 31 December 1990 1300kW 500kW 515 m 520 m Mount Mowbullan
Mackay Mackay 33 ( UHF ) 3 32 ( UHF ) 31 December 1990 1300kW 360kW 612 m 630 m Mount Blackwood
Rockhampton Rockhampton 34 ( UHF ) 3 36 ( UHF ) 31 December 1990 2000kW 500kW 523 m 523 m Mount Hopeful

Question: Which channels of TNQ first aired in the Southern Downs area on 31 December 1990?