I'm wondering if this might be the Starman tv series that was based on the Jeff Bridges movie. The TV series was made in 1986/7 and starred Robert Hays from Airplane. It is not listed on the site but is on YouTube here:

https://www.youtube.com/watch?v=Enrj1y7hxbk&list=PL7kL7rsp0aRulT6GTSnPkPuq1cv6Ty- XlO&index=1