well u are better off without it ,u can have good video only if u are within 2km from the telephone exchange(wire length),most of the users are not happy with it ,i would rather wait for reliance iptv to come to bangalore.
bsnl iptv there is no rental until they provide 160 channels as of now i heard they ar giving about 70channels most of which are free to air.
there set top box costs about 3500 or u can rent it out at 100 per month.
installation charge is 999.