Hi @Iel & @vjrobson - the ETC will always output at at resolution of 720p and frame rate of 60Hz. Your display device (TV, projector, etc.) and/or capture hardware and software must be able to work with those settings.
@vjrobson what is the make & model of your TV? Can you change your input settings to match the ETC's output settings?
@Iel what device are you trying to use?