Actually, original poster asked two questions in original premise(s).
(1) Has PV's show been cancelled? Obviously not, as this afternoon's show was indeed on air.
(2) How much revenue can a third-tier show generate? Question is too vague. However, as Evangelist states, a call to WW1, WTN, Valentine's syndicator or the corporation's CPA would yield an answer along the lines of, "... enough to stay in business" to "none of your business." Perhaps there is a WW1 prospectus that would better answer the original poster's revenue question.