I live in Chattanooga. I dont know if any of these places existed in Knoxville, but here's a few that I miss...
1. Pizza Inn - Pizza Hut was always more popular, but I loved Pizza Inn too. They had a wider selection. You could get lasagna, Italian hoagies, spaghetti, etc.
2. Electronics Boutique - back in the day I used go in there and spend time looking at games, pour through game mags, and peaking at strategy guides (though that was frowned upon). I think Gamestop bought them out but I liked EB so much better.
3. Sears Surplus - I guess you could say they were an extension of Sears but they operated outside of the mall in a separate building. They mostly sold clothes and home furnishings. I loved this place because as a kid and a Raiders fan, back then it was about the only place I could find Oakland Raider merchandise. At the time the only NFL merch you could find in Chattanooga was Dallas Cowboys, Atlanta Falcons, and maybe Pittsburgh Steelers.
4. Rax restaurant- They were kind of like Arby's, specializing in roast beef sandwiches. They had amazing milkshakes too!
5. Record Bar/Cats Records - These were my go to places for vinyl and cassettes back in the day!
6. Lionel Playworld - In the 70's and early 80's before Toys R Us there was Lionel. Actually before that it was called Toy City. But as a kid, this was the place to go for toys.
7. East Ridge Toy Store - Located on Ringgold Road, this was a cool toy shop! The building looked like a Castle and it had a sign with a digital clock on the front of the building that would countdown to Christmas. I bought my bionic man and bionic bigfoot action figures there!
8. Otasco - A jack of all trades kind of store. They had toys, hardware supplies, tools, lawn mowers, etc.
9. Kenny Roger's Roaster - I LOVED this place back in the day! Roasted chicken, plus they had the best corn muffins!
10. Four Square Movie Theater - Located in Red Bank right behind the Kanpai of Tokyo restaurant. This was the .99 cent theater. I saw a lot of movies here growing up!