Table:
0
A
B
C
D
E
1
Market Rank & City of license /Market
Station
Channel TV / DT
Owned since
Affiliation
2
1. New York City
WABC-TV a station built and signed-on by ABC
7 / 7
1948
ABC
3
2. Los Angeles
KABC-TV
7 / 7
1949
ABC
4
3. Chicago
WLS-TV
7 / 44
1948
ABC
5
6. San Francisco - Oakland - San Jose
KGO-TV
7 / 7
1949
ABC
6
10. Houston
KTRK-TV
13 / 13
1986
ABC
7
24. Durham - Raleigh - Fayetteville
WTVD
11 / 11
1986
ABC

Questions and formulas:
Question: When was the station WLS-TV owned since?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="WLS-TV"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="WLS-TV"),4))
Level: medium
Question: What market rank and city had the station KABC-TV?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="KABC-TV"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="KABC-TV"),1))
Level: medium
Question: What was the earliest year a station was owned since?
Formula: MIN(D1)
Formula2: MIN(D2:D7)
Level: easy