Table:
0
A
B
C
D
E
F
G
H
I
1
Channel
Band
Video Frequency
Audio Frequency
Station
Network
Transmission
Format
Status
2
7
UHF
189.250- MHz
194.750- MHz
TV1
RTM
Analog
SDTV
Public
3
27
UHF
519.250- MHz
524.750- MHz
TV2
RTM
Analog
SDTV
Public
4
29
UHF
535.250- MHz
540.750- MHz
TV3
MPB
Analog
SDTV
Commercial
5
37
UHF
599.250- MHz
604.750- MHz
NTV7
MPB
Analog
SDTV
Commercial
6
44
UHF
655.250- MHz
660.750- MHz
8TV
MPB
Analog
SDTV
Commercial
7
48
UHF
687.250- MHz
692.750- MHz
TV9
MPB
Analog
SDTV
Commercial

Questions and formulas:
Question: How many networks are there that have a channel number 7?
Formula: ROWS(UNIQUE(FILTER(F1, A1=7)))
Formula2: ROWS(UNIQUE(FILTER(F2:F7, A2:A7=7)))
Level: medium
Question: What station on the network is tv3?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:I1,E1="TV3"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:I7,E2:E7="TV3"),6))
Level: medium