My first dth was tata sky in 2007 , then searched cheaper-installed d2h 2009-then airtel 2011-dish tv 2012-13 now completely back to tata sky only satisfied.
stopped d2h- wost quality av and hardware.
stopped airtel- rubbish logo, bad video on sd, and not adding demanded channels for long time, very bad cc support.
stopped dish tv in 2015- tata sky added almost all demanded channel, bad av, disgusting ui,bad sw hw, signal problem from 3 sats. never stopped tata sky as my total family like most.