You can buy the theme music from Amazon (https://www.amazon.com/Hardy-Boys-Original-Soundtrack/dp/B08ND8G7J3/ref=as_li_ss_tl?ie=UTF8&linkCode=ll1&tag=hardboyscasee-20&linkId=e08703d5296a6aee7f0b82ab5b628426&language=en_US).
And listen to it on Spotify (https://open.spotify.com/playlist/1MAj4MgfYsDfkpDdwrmYkQ) along with other songs used in the show.
Totally awesome! Thanks for the way cool, rad links. :) 8)