Table: tv_stations_3
Columns: market_rank_city_of_license_market
station
channel_tv_dt
owned_since
affiliation

Question: When was the station WLS-TV owned since?
SQL: SELECT "owned_since" FROM tv_stations_3 WHERE "station" = 'WLS-TV'

Question: What market rank and city had the station KABC-TV?
SQL: SELECT "market_rank_city_of_license_market" FROM tv_stations_3 WHERE "station" = 'KABC-TV'

Question: What was the earliest year a station was owned since?
SQL: SELECT MIN("owned_since") FROM tv_stations_3