PCIe 1x

PCIe 1x TV Tuner

PCIe 1x cards are now shipping. [PCIe = PCI Express]

Terratec; Digital TV via Antenna with Stereo-Sound, Dual-Tuner (1x PCIe)

PowerColor Computer Inc; multimedia center / TV Tuner (1x PCIe)

Video Card (1x PCIe)

SIIG; PCIe 2-Port SATA II RAID Card (1x PCIe)

[there are tons of PCIe 16x video cards]

Additional PCIe card manufacturers may be found here:

http://www.interfacebus.com/COTS_Board_Manufacturers.html