Yes, KBC is actually airing. Seriously, Sony. You got Sony Pal and Sony Wah. Yet, you gave syndication rights to some other channel before a re-run on your own.
Even zee has syndication agreement with many FTA hindi movie channels and they share big number of bollywood films with them instead of airing many of these on their own channels . Maybe they are not able to monetise content properly while airing on own channels while syndication route would b providing more monetary profit. Even Viacom18 has such syndication agreement for its GEC and Hindi Movies content with various FTA channels. Star/Disney too shares very limited number of hindi movies with B4U, Goldmines but they alongwith viacom18 make sure to give space to all such content also on their respective channels