(Most of) Practical Computing (Magazines, 1978-1987)

You can read it here.

Various Australian Lotto Draws (Videos, 1982-2018)

You can watch them here.

Five Lionni Classics (Video, 1986)

Based on five children's books by Leo Lionni. You can watch it here.

One must imagine Sisymouse happy.

Amazing Bumpman (In-browser, Colecovision, Telegames, 1986)

You can play it in your browser here, and read the manual here.

Controls: arrows keys, Ctrl, Alt, numpad.

How To Use Soft Plastic Lures (Video, 1986)

You can watch it here.

Various Questron Books (Books, 1980's/1990's)

Books compatible with a series of educational electronic toys. You can digitally borrow them here.

You can read an article about a similar product, the Challenger, including an interview with its co-creator, here.

Several Books by Sarah Sargent (Books, Sarah Sargent, 1978-1995)

You can digitally borrow them here.

The Bluffers - The Complete Animated Series (Videos, 1986)

You can watch most of this Dutch series, which features art direction and character designs from Michael Jupp of The Dreamstone and Bimble's Bucket fame, here.

As for the rest, you can watch episode 3 here, episode 4 here, and episode 11 here. (The first two are different timestamps on the same multi-episode VHS upload.)

Also, here's the original 1983 puppet-based pilot, The Duffers, by animation legend Gene Deitch.

Banan Issues 5 and 8 (Zines, 1986/1988)

Two issues of a Swedish punk zine. You can read them here.

LEGO Stories (Video, 1986)

Seven official stop-motion Lego short films. You can watch it here.

Labyrinth: The Book of the Film (Book, A.C.H. Smith, 1986)

You can digitally borrow it here.

Labyrinth - The Game (Apple II, Lucasfilm Games, 1986)

Co-designed by Douglas Adams. Use the in-browser emulator here with these .dsk files.

Here's the manual, and here's a vintage walkthrough.

Waffles (Video, ~1985-1986)

You can watch it here.

Ziggy Christmas Card (In-browser, Apple II, 1986)

You can play it in your browser here.

Cinema Then, Cinema Now (Videos, 1986-1994)

Local TV film discussion program from New York City. You can watch almost 160 episodes of it here.

Hocus Focus (C64/Spectrum, Binary Design, 1986)

You can play it in your browser here. You can read the ZX Spectrum version's manual here. C64 controls include numpad 84620 for joystick.

Zoobilee Zoo - Most of the Original Series (Videos, 1986-1987)

You can watch it here.

The iconic intro: