#plagiarism

i just saw this channel on youtube called "FrenchLaughs" claiming to be a new french standup star. but the jokes are literally copied from a 1998 show by jean‑pierre leclerc that aired on france 3. i watched the clip at 1:23 and the punchline at 2:47 is identical. no credit, no license. the channel uses the same audio waveform, same background music. i think they are trying to pass off the material as original. i want receipts, how can i prove this to the community? also, is there a legal recourse for the original creator? anyone else seen this? i feel like the comedy community is being robbed