How many networks run on virtual channel 23.4?
CREATE TABLE table_2857352_3 (network VARCHAR, virtual_channel VARCHAR)
SELECT COUNT(network) FROM table_2857352_3 WHERE virtual_channel = "23.4"
### Context: CREATE TABLE table_2857352_3 (network VARCHAR, virtual_channel VARCHAR) ### Question: How many networks run on virtual channel 23.4? ### Answer: SELECT COUNT(network) FROM table_2857352_3 WHERE virtual_channel = "23.4"