"I think Ten 2 also have 3 months lock in period, because recently before switching to Tata Sky I activated Ten 2 & the cc told me channel activated for 3 months.
Using d2h app we can deactivate the channel before lock in period (Don't know still available) during IPL season I activated Sony ESPN after 10 days deactivated it through d2h app & activated Sony Six ...:tup"