Quote Quoting jk
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correct but is OP infringing upon PBS' claimed or established rights? One can often use a trademark if it is not in a competing market, either geographically or sector of commerce.
That's true but it only goes so far.

And one wouldn't get very far with:

Microsoft Baby Sitting Service

Or:

Coca Cola Insurance Agency

Or:

Walmart Car Wash



You get the idea.