Actually SPI0 is used by Raspi-based ambilight solutions with Hyperion. But there are more SPI interfaces available. The RaspberryPi TV HAT hardware for receiving DVB-T2 TV is using SPI0 with CS0. Using this Interface with CS1 for the ambilight reduces the bandwidth for the TV and for the Ambilight. Probably it won't work together. An older thread speaks about the possibility to change the SPI-Interface to SPI1, but this is a workaround made by hand and I do not know if this possibility still is supported by the actual version of Hyperion. I am trying this actually without success. I think it would be good that Hyperion supports more SPI-Interfaces and that HyperCon supports this interfaces in its hardware device selection possibilities, too.