I've compared them on Samsung's website, the biggest differences I can see is the LNR237W has 2 composite video inputs and the LNR238W has an antenna and rca input, there must be something else that I'm too stupid to see.
Also styling differences. Take a look on samsung's website at the user manual. it comes in pdf form and has pictures of both sets. they look different. lnr238w will run you more money and will provide a better resolution.
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