System Manual
Page 101
... program at every channel change your screen format and resolution temporarily, press INFO on the "TV Resolutions" screen. Native mode slows down the system's response time to review Appendix 3, About HighDefinition, which describes HD formats and resolutions. Video Set your remote, select "Audio/ Video" from the Channel Banner and select "Change Resolution & Format".
... program at every channel change your screen format and resolution temporarily, press INFO on the "TV Resolutions" screen. Native mode slows down the system's response time to review Appendix 3, About HighDefinition, which describes HD formats and resolutions. Video Set your remote, select "Audio/ Video" from the Channel Banner and select "Change Resolution & Format".