Alright, let's see... CRTC pay & specialties financial report...
- Food Network : 0.14$ to 0.16$ per subscriber per month, has 7.5 million subscribers (2013) but received 51.4 millions in advertisement revenues.
- HGTV : nearly 0.16$ per subscriber per month, has 9 million subscribers (2013) and received 56.7 millions in advertisement revenues.
- History : 0.29$ to 0.31$ per subscriber per month, has 7.9 million subscribers (2013) and received 51.4 millions in advertisement revenues.
Clearly, those channels are forced on basic and popular specialties on most BDUs. But it's easy to understand why you absolutely want to keep Food and HGTV on basic : less subscribers means less advertisement revenues, so Shaw would no longer be able to cash in ~20 to ~42 millions per channel per year in pure profits.
For a BDU, carrying those three channels means they only give out 0.64$ per subscriber per month to Shaw Media, extremely cheap.