Table: win_tv_station
Columns: region_served
ch_1
on_air_date
analogue_power
digital_power
analogue_haat
digital_haat
transmitter_location

Question: What is the Ch1 in the region served by Central Tablelands?
SQL: SELECT "ch_1" FROM win_tv_station WHERE "region_served" = 'central tablelands'

Question: What transmitter location has digital power of 570kw?
SQL: SELECT "transmitter_location" FROM win_tv_station WHERE "digital_power" = '570kw'