Some channels are slow to load or unable to play, you can try it on your PC

Cuatro (stylized as cuatroo, "Four") is a Spanish free-to-air television channel that was launched in November 2005. Owned by Mediaset España Comunicación, the Spanish subsidiary of the Italian Mediaset group, it is broadcast on TV frequencies licensed to the previous owner Sogecable in 1990 and previously used by them for the analogue transmission of its pay-per-view channel Canal+.