This week’s “Rollin’ On TV” episode features a visit to Thetford Corp., based in Ann Arbor, Mich., as the company marks its 50th anniversary. Also, Jeff Johnston checks out the Jayco Melbourne Class C motorhome and the crew takes a look at rental firm Airstream-2-Go. To view the video click here or scroll to the right side of the RVBUSINESS.com home page.