@Charlie+E+Elston
Not a lot to go on, but DVD is now a really old technology. Some users have had success using HDMI 3 with the compatibility mode switched on, and a 'better' (but not expensive) HDMI cable.
Past that, consider moving into the 2010s with a Blu-ray player.
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Sky Glass 55" (on ethernet) & two Stream Pucks (one ethernet / one WiFi)
BT Halo 3+ Ultrafast FTTP (500Mbs), BT Smart Hub 2
