iNDemand only has 9 HD feeds for League Pass, they also have 10 SD feeds, 2 of them, including the HD feeds, are used for a Mosaic channel and another for a stats channel. If they have room they fit in dual feeds. If there's more than 8 games going on at a time, the stats channel goes away, if there's more than 9 games, the mosaic channel goes away. They also share the League Pass channels with MLS Direct Kick for the first weeks of the season.
They do use the Rogers SportsNet and CSN Philly feeds at times, however DirecTV does too since DirecTV currently lists Raptors @ 76ers tommorow night at 8pm ET on channel 751. iNDemand is using the CSN Philly feed for that game, I don't know which feed DirecTV is using.