I mentioned a source of back episodes (Big Mouth Boat Supply) one time before, but realized that I never really referred to the show. John Greviskis is the host of this cable series. Each episode is 30 minutes and covers various boat building, repair and upkeep issues. They usually have a "project" to detail which is based around a certain manufacturer’s products. They will have product experts showcase the materials used. Factory tours and various "behind the scenes" clips are often interesting.
Sometimes things are geared a bit "simple" or are a bit sales oriented for my taste, but I’ve learned of several products I didn’t know were available, and often the advertising is as informative as the show 🙂
Check their web page for show times and channels in your area.