Hi and welcome from another Spanish Amiga user!
You have a AverMedia TVBox, you use Mediator or Grexx PCI? you can see TV with a 030/50mhz processor? i will buy a 1200 tower and mediator, i have hd and cd mounted on a PC tower with a long ide cable, i think that a tower with mediator is a good step to upgrade my 1200 and wait to PowerVixxen or SharkPPC to run OS4, and i want to know how run tv cards on a 030.