There is a brand ( forgot the name) that sells TVs specifically for RV service. The frames are strengthened to withstand the vibration of riding in an RV. The circuit boards are coated to protect them from moisture. They run on 12V DC

Of course they are more expensive. You need to decide if the expense is worth it, or if for your rather limited use needs, a regular TV or monitor will provide acceptable service.

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1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags