ARe you asking if there is a way to connect a DTV antenna-tuner to display content on an Android?
The offering you show is an app which will use one of these 2 receivers
- Audiovox MobileTV Receiver
- Elgato EyeTV Mobile TV Tuner
But, if I understand the implementation, those are using a specifically tuned antenna to allow display of whatever the broadcasting location is licensed for. This is why you will only see a few of the local programming (TV stations) that the receivers get. The technology is seen in the 1st paragraph, here.
I did see another broadcast option about another US venture to broadcast to mobiles. In fact, as I remember, recently some broadcast content providers had tried to use the court system to shut them down.
Edited: added the Company which is sued for making broadcast content available
Which technology approach are you after?