A while ago (a few years maybe) Dish added WPIX and I **Think** at the time was CW San Diego (was 69 now as moved to 6) to markets that didnt have a CW. Even after some markets got their "local" CW Dish has kept it
My market (Duluth, MN) has had WPIX as channel 251 for a few years now. Recently Dish added the local CW (KDLH-DT2) under channel 11 but we still have 251 as WPIX
Thanks Iceberg. That explains it. My current market doesn't have a local CW.