IP , Hybrid , Combo STB

For example : STB without RF tuners are basically streaming from IP, this is what we called IP STB, including so-called Android STB or OTT STB.

However, if there is a RF tuner front end embedded with ip STB, it becomes a Hybrid STB, such as DVB-C + IP; DVB-S + IP; DTT + IP,  which could provide non-linear , non-broadcasting services to the subscribers.