On Disc 1 go to the 'Scene Selections' for the following episodes:

"Never Name a Duck"
"The Two Faces of Rob"
"The Attempted Marriage"
"Hustling The Hustler"
"What's in a Middle Name"

Highlight the 'Opening Titles' on each of these episodes and press LEFT. 
Dick's head will light up. Press ENTER and you will see various 
commercials for Dash Laundry detergent and Kent Cigarettes featuring 
Dick Van Dyke and the cast.