Samsung LE40R72BDX 40 in. HD-Ready LCD Television "codes 1647" Questions

...1647 worked with a Rev 9 remote but not with a Rev 8 remote I found codes 1277, 1340 and 0646 worked with a Rev 8 remote but not with a Rev 9 remote Other codes that worked with certain older models ...

...1647 worked with a Rev 9 remote but not with a Rev 8 remote I found codes 1277, 1340 and 0646 worked with a Rev 8 remote but not with a Rev 9 remote Other codes that worked with certain older models ...

...1647 worked with a Rev 9 remote but not with a Rev 8 remote I found codes 1277, 1340 and 0646 worked with a Rev 8 remote but not with a Rev 9 remote Other codes that worked with certain older models ...