Back in the 1980s, PBS produced film versions of several Mark Twain works, including Life on the Mississippi, The Private History of a Campaign That Failed and The Mysterious Stranger. (Those were the ones that I thought worked best; if I remember correctly, the others were Pudd'nhead Wilson, Huckleberry Finn and The Innocents Abroad.) Does anyone here know if they've ever been released on DVD or videocassette? -- Bob G.