Simple. The reason is to lure people by showing it free for some weeks so that viewers get addicted to its serials and programmes.
And then turn it to encrypted mode that that people shell out money to watch it. :lol
Bapun, I am getting it as "Scrambled Channel" only on FTA Receiver. I am getting it on Dishtv as a pay channel.
I am not a FTA User. I have Dishtv and Hathway Digital Cable too.