The post office lady, who is always nice, flipped out when I arrived with a package to mail with PBS DC (not postage).  I asked her to charge me the 19 cents in addition to the 2.38.  She called her boss and he said no.  So I just paid the 2.38 for media mail.

Question:  Will the receiver be charged the 19 cents?  It has been scanned enroute and I have received a quick credit.

It depends. If the recipient's post office notices the shortage of postage, then it will arrive postage due. If they don't, then it won't. It's also vaguely possible that they could return it to you for insufficient postage, but that's very unlikely for only 19 cents.

Betty, what you attempted to do was completely legitimate and legal. I mail that way all the time and my PO doesn't even blink.

Consider talking to your local postmaster regarding their lack of education.  If they refuse to get with this century, file complaints online and contact the regional postmaster. Electronic DC is very common these days, there's no excuse for lacking knowledge on how to process it . . . in fact, if the postal clerks would just trust their computer it would not only accept the DC as printed but would accurately figure postage and DC charges. My local PO peeps insist the computer is almost idiot proof, if they would just trust it enough to input the information.

I have receipts showing postage and E-DC for the same transaction, I'd be happy to send you some if it would help your situation.

ETA - I would refuse to pay the additional .19 . . . call me stubborn, but your clerks refused to process the DC correctly (as you properly requested) so they should be required to eat the cost. Unfortunately, if caught, their error will be passed on to your receiver . . . not fair, and additional & unnecessary hassle for you too.

I PM'd my requestor, so we will see what happens.