hi ya
possible ways - they may be a button on the tv, sometime marked source - or a o with arrow through it
or
best bet is to purchase a one for all remote, for tv as you have a large brand these should work fine,
even try a pound shop one, as it a big brand
samsungs direct link is
http://www.samsung.com/us/support/owners/product/HL-P5663W
they may be able to sell you an original remote
hope it helps a little best wishes davetech
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