We have discussed this earlier too. Tamil, Telugu regional sports channels are mostly launched by different broadcasters bcoz these r financially viable while for other languages there r limitations or limited scope so as to run a full fledged regional sports channel.
Regarding distribution, well bcoz of delay in implementation of amended NTO 2.0 regulations (broadcasters were not ready to abide by initial NTO 2.0 regulations hence previous variant of updated RIO also did not come into effect & court cases / negotiations with TRAI went on before this) there was issue of broadcasters not being able to come out with Revised RIO with changes in channels or pricing hence old RIO was continued. Without signing of updated RIO with operators new channels cannot launch and broadcasters cannot pay carriage fee to so many operators for placement of various new channels across different platforms as it financially unviable and unwise thing to do. This caused certain channels from Disney-Star not launching on different Cable or DTH Platforms. This will be sorted out shortly