If you're using the antenna socket in the house, the socket could be bad or the antenna needs replacing. It may also depend on what the general TV reception is like in your location.
Have you tried programming the DVD player remote to your tv?
Also, if you have a universal remote here are some codes to program it to that pioneer DVD player:
4 Digit Pioneer DVD Player Remote Control Codes057106311965200820212160216421912223222423102337240006320525063819001902
here is link to manual:
https://www.manualslib.com/manual/859351/Pioneer-Xv-Dv77.html?page=15#manual
Hello -
You can safely download a manual (PDF format) here:
http://audio.manualsonline.com/manuals/mfg/pioneer/xvdv262.html
You will need Adobe Acrobat Reader software (free).
When you save the PDF document, be sure to save it with a file name you can find easily . . . something like Pioneer XV-DV262 Manual.
Best wishes.