user: Question: What is the Call sign of the omni television network with a Digitial PSIP of 14.1?
Columns: ['Digital channel', 'Digital PSIP', 'Rogers Cable (Ottawa)', 'Vidéotron (Gatineau)', 'Call sign', 'Network']
Types: ['text', 'real', 'real', 'real', 'text', 'text']
Sample row: ['25', 4.1, 8.0, 6.0, 'CBOT-DT', 'CBC']
SQL:

assistant: SELECT "Call sign" FROM "Table" WHERE "Network" = 'omni television' AND "Digital PSIP" = 14.1;