Counterprogrammed vs Counterprogrammes - What's the difference?

As a verb counterprogrammed

is past tense of counterprogram.

plural of counterprogramme.

(head)

(counterprogram)

* (rare)

To schedule (a broadcast on radio or television) to compete or contrast with a program broadcast simultaneously on another station.

By extension, to engage in similar competitive posturing or scheduling in any comparable situation.

The opposing political party is deploying high profile speakers to counterprogram the convention with small rallies at nearby sites.