Sony PlayTV dual tuner DVB-T
It is supported under Linux.
This device, vendor id 0x1415, product id 0x0003, is based around the DiBcom STK7070PD reference design and has a STK7070PD frontend and two DIB7070p tuners. An advantage it has over similar devices is the use of a single external antenna cable, which is used to drive both tuners, rather than requiring external splitters.
See Wikipedia  for more info on the device itself.
See the talk page
Useful information is available from the pages of these similar/identical devices: