In the spring of 2005, Micronas Semiconductors announced the APB 7202A nGene dual-channel PCI-Express multimedia controller with support for two DTV transport streams and analog video, see product page. It is unclear which analog decoder chip is used.
There are currently no Linux drivers for cards with this controller chip, assuming they exist.
PixelView PlayTV PCX600
This card, from Prolink Microsystems in Taiwan, was demonstrated already at CeBit 2005 as the first PCI Express dual channel multimedia controller; cf. press release. It uses the nGene controller.
They claim their PV-A425E model will be available "soon", but a year later there is no trace of it.