Definition of off-network in English:

off-network

Pronunciation /ˌɒfˈnɛtwəːk/

adjective

North American, US Television
  • (Originally) designating programmes not broadcast on a major national network or on stations not belonging to such a network; (now chiefly) of or designating a programme originally produced for a major national network and subsequently syndicated.

Origin

1950s; earliest use found in The Lethbridge Herald.