Product Placement in Back to the Future

Klaw Kan (Dog food) (opening credits)

Nike (Marty's footwear)

Krylon (Multiple boxes in Doc Brown's lab)

Huey Lewis & The News/The Power of Love

Burger King (1985 Hill Valley)

Toys R Us (1985 Hill Valley)

Texco (appears in 1985 and 1955)

Jeep (Marty hitches a ride next to the logo)

Mountain Dew (driver of Jeep wears logo t-shirt and hat)

Toyota

Yamaha Drums (band audition)

Gibson Guitars (band audition)

Honda

Zales Diamonds (advertisement on bench)

Toyota 4x4 Jeep "That's hot" (Marty's dream car)

Miller Lite (Advertisement)

Diet Pepsi (McFly dinner table)

LIFE (game of) (next to television in McFly house

Bud Lite (McFly dinner table)

Diet Pepsi Free (Marty's bedroom)

Ross Stores (Twin Pines Mall)

JC Penny (most closeups in the Twin Pines scene)

Delorean 

GMC (General Motors?) (multiple vehicles)

JVC Cameras (used to record Doc Brown's time experiment)

Goodyear Tires (close up, on the Delorean)

Miller High Life (side of delivery truck)

Cattle Queens of Montana (playing in 1955 theatre) (1954, RKO pictures)

Sherwin Williams paint (logo painted on a brick wall)

TAB soda (Malt shop)

Pepsi Free (regular) (Malt shop)

Mounds candy bar (Malt shop)

Toblerone candy bar (Malt shop)

Calvin Klein (referred to in dialogue, Marty's underwear)

Milk-bone dog treats (in Doc Brown's garage)

Science Fiction Theatre (George mentions it as his favorite television program) (1955-1957, owned by United Artists Television in the 80's for syndication)

Fantastic Story Magazine (1950-1955) (George McFly's bedroom)

Van Halen (Marty impersonating an alien)

Pepsi-Cola (in the 1950's, displayed on crates, posters, as soda machines, and drunk by Marty)

Allstate Insurance(1955 billboard

Schwinn bike shop (1955 storefront)

California Raisins (Advertisement on bench)

Bank of America (1985 storefront)

Footlocker (Lone Pine Mall)

Panasonic (clock in Marty's bedroom)

BMW (McFly family car)

Adidas (Biff's track suit)