working with following TV models

M420KD XVT323SV XVT373SV XVT423SV XVT473SV XVT553SV  XVT473sv E472VL, E472VLE, E552VLE, M420SV, M470SV, M550SV, M420SL, M470SL M550SL, M420SV, M470SV M550SV, M370SR, M420SR, M420KD, E551VA, E460ME, M420SR, M420SV, M470SV, M550SV, E3D320VX, E3D420VX, E3DB420VX, E3D470VX, M320SR, E472VL /E472VLE/E552VLE/M420SV M470SV M550SV M420SL

M470SL M550SL;; M420SV M470SV M550SV M370SR M420SR M420KD E551VA
E460ME M420SR   M420SV   M470SV  M550SV  E3D320VX  E3D420VX  E3DB420VX
E3D470VX  M320SR   M3D421SR   M3D550SR  M3D460SR  M3D420SR
XVT3D474SV     E3D420VX   XVT3D650SV  M420SV M470SV M550SV M320SR M420SR M3D460SR E3D320VX E3D420VX E3D470VX E322VL E422VL E472VL E552VL 

Please note:

SV422XVT SV472XVT VF552XVT M470NV M550NV XVT3D650SV, your HDTV must install the latest firmware(the version with youtube and Skype apps) to be able to use this keyboard remote.

XVT323SV XVT373SV XVT423SV XVT473SV XVT553SV, For XVT models your HDTV also must install the latest firmware(the version with youtube and Skype apps) to be able to use this keyboard remote.

Note: To protect the logo, we add a sticker RC-015 or RC-017 on the logo, so please remove the RC-015 or RC-017 after you receive your remote, Then you can see the Brand Logo. if any query please let us know before give feedback to us, we will solve for you, thanks a lot!