New card activations for TivùSat peaked at some 3,000 cards per day in the run up to digital switch off in Italy.
The free-to-air platform, backed by Rai, Mediaset, TI Media, FRT and Aeranti-Corallo, added an additional 500,000 subscriptions to reach 1,524,285 by July 3.
The organization said the run rate was much higher than expected.
61 television channels and 40 radio channels can be received through an increasing number of products. These include 70 IDTVs including models from LG, Sony and Samsung.