I was a kid when that episode of Night Gallery aired. Freaked me out for a few years.
It really creeped me out when I saw it as well. Classic Rod Serling.
I also got freaked out. I tried to go to sleep after watching it at age 10, but felt itching in my ear. I convinced myself that I had a bug that would eat my brain, and finally woke up my parents. I will never forget the look on my dad’s face when I burst into their room crying about an earwig.