ANTIQUES ROADSHOW rolls in to Houston, Texas, where host Mark Walberg visits the Beer Can House - a local home adorned with hundreds of beer cans that even boast curtains, wind chimes and sculptures made out of cans - to talk with ROADSHOW appraiser Andy Ourant about these collectible containers. At the Reliant Center, appraisers find a rich brew of objects, including a scrimshaw walrus tusk depicting the Almira, America's longest-working whaling ship; a collection of rare, unopened packs of Topps football cards from 1958, featuring such legends as Johnny Unitas and Bart Starr; and a book of Mexican War battlefield illustrations that draws an insurance value of $45,000 to $50,000.