I loved the Steven King adaptation of Psycho. Bate's Motel was a real insight into Norman Bates and and his mother, Norma before the events of the famous movie. Great show.

I've always been a huge fan of Tales of the Unexpected. In regards to a movie I would have to say The Exorcist. It's a slow burner but was great for it's day.

I wouldn't say it's classic but the exorcist series was really fun to watch. Great characters and even a few scares. I like how it ties in with the initial movie/book.

I have always loved the House on Haunted Hill...both the old version and remake, as well as the series.

There are a lot of others too. The Carnival of Souls I remember watching when I stayed home sick from school one day and it SCARED me senseless. Don't stay home from school and watch scary movies.

I'm not sure if Constantine would be considered a classic but it's definitely a very decent horror movie. They are planning on releasing a new Constantine movie. 

Some of my favorite classic horror movies are the following movies ;

1. Halloween 

2. Alien 

3. The Exorcist 

4. The Texas Chain Saw Massacre

5. Scream 

Chucky was my favorite classic horror movie, I  enjoyed watching The Texas Chain Saw Massacre and Scream as well.

If you have never watched Hellraiser, then you should know that you have missed one of greatest classic horror movies ever made. The Cenobites in the movie have perfected the way of killing in the most gruesome way. 

Some of the modern horror movies which I've watched that's going to be seen as great classics are the following ;

1. Midsommar

2. Hereditary

3. The Conjuring

4. Nosferatu (1922) Real Classic

5. Psycho