LifeView is the brand line marketed by Animation Technologies, a Taiwanese manufacturer of PC multimedia and video products.
Animation Technologies is also the OEM for a large number of products marketed by other vendors (example).
The LifeView company are not at all Linux friendly and you should avoid buying their DVB-T devices unless you have no alternative. LifeView supports only Windows and, in the case of the TV Walker Twin, they even refuse to support the device under Windows Vista.
Supported Devices (an incomplete listing)
- FlyVideo3000FM and FlyVideo3000
- FlyVideo3000 PAL-N
- FlyDVB-T Hybrid
- FlyDVB-T Hybrid CardBus
- FlyDVB-T Duo CardBus
- FlyTV Platinum
- LV5T 
Starting to be supported:
Currently not supported:
- LifeView LR535
- TV Walker Q Plus
- TV Walker P Plus
- TV Walker QQ
- LifeView FlyDVB-T Hybrid Ex LR320 (hardware analog encoder, based on the WISchip GO7007)
Old LifeView devices list
TODO: sort this list to thesupported/unsupported
- FlyVideo - Zoran (LR25)
- FlyVideo EZ - Zoran
- FlyVideo - Capture only (ZR36120 + SAA7110) (LR37 Rev.C)
- Flyvideo 98 - w/eeprom and PCI subsystem ID (LR50 Rev.Q )
- Flyvideo 98 - no eeprom (LR50 Rev.W)
- Flyvideo 98 EZ - capture only (LR51 Rev.E)
- Flyvideo 2000 series - (LR90)
- Lifetec/Medion LT 9815 - (LR90 Rev.F)
- Flyvideo DVBS - (LR97)
- FlyVideo A2 - LR90 Rev.F (w/Remote, w/o FM, stereo TV by tda9821)
"Flyvideo II" had been the name for the 848 cards, nowadays (in Germany) this name is re-used for LR50 Rev.W. The Lifeview website has even more names: Flyvideo III,2100, 3000,3100. These cards are sold by many OEMs too.