A:Answer Hello ODB, you may use the old one. Both TVs has the same wall-mount hole pattern of 300 x 300mm. For reference, please refer the links below:
https://www.sony.com/electronics/support/res/manuals/4732/c0bed626c03617610c2688cd92f916d4/47327481M.pdf, see page 20
https://www.sony.com/electronics/support/res/manuals/W001/W0011239M.pdf, see page 192.
Regards, _Bob