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 DIB7070p tuner.
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: