I have a panasonic eh50 am using fios tv can I still use the panasonic eh50 tv programming guide

I don't think they broadcast the analog TVGOS data. To get all the channels, you would need to use their tuner, and, unless the recorder's IR blaster can change the channels on the box (which I don't know, because the recorder's an old model and might not have the codes for the much newer FIOS tuners), you'd have to synch manual timers on both the box and the recorder.

You should at least have the FIOS channel guide to use for info, though.

So in a sense, you can use it with the recorder OK (since there's a way for the FIOS tuner to change channels - I checked, and the tuner can change channels on it's own using the "reminder" feature) - you just can't use the EH50's TV Guide on Screen feature - you'll have to set manual timers. But FIOS' superior picture quality should be worth it enough right there (even their standard definition signal should look very good on an HD display). You're lucky that you have it available in your area.