Dugouts: Everything IN PLAY unless ball goes into the dugout. Photographers' areas are considered part of dugout.
Foul Poles: Ball hitting any part of screen area supported by poles down left- or right-field lines: HOME RUN.
Canvas (Tarp): Ball remaining behind or underneath canvas: ONE BASE on pitch, TWO BASES on throw by fielder, TWO BASES on batted ball, otherwise in play. Fielder may make catch standing on canvas.
Right-Field Manual Scoreboard: Ball going through the scoreboard, either on the bounce or the fly: TWO BASES.