Are you able to physically swap the EA-18 and ES-25 to verify both STB are indeed outputting 16:9 to S-video?
Another option would be to run the s-video cable directly to your TV and see if that is indeed 16:9. I'm assuming the STBs are different and not all STBs output WS to anything other than component or Digital outputs.
Your correct that the ES-25 and EA-18 should both record the WS if fed that type of signal. Just make sure you have the EA-18 setup for 16:9 output. I know on the EZ-28 anyway having the output set for 4:3 it will not record in WS. Not positive about the tunerless EA-18.
Another option would be to run the s-video cable directly to your TV and see if that is indeed 16:9. I'm assuming the STBs are different and not all STBs output WS to anything other than component or Digital outputs.
Your correct that the ES-25 and EA-18 should both record the WS if fed that type of signal. Just make sure you have the EA-18 setup for 16:9 output. I know on the EZ-28 anyway having the output set for 4:3 it will not record in WS. Not positive about the tunerless EA-18.

















