Hi there @MSY92!
Don here from Shopify. :)
I consulted our theme specialists internally who confirmed that in order to embed a video to the slideshow on a Debut theme you would need to look at using a slideshow video app like YouTube + Vimeo Video Slider or to consider hiring an Expert Developer to create this custom functionality for you.
You can, of course, use the Debut theme's video section functionality to add a video elsewhere on your homepage.
All the best!
Please add a section in your Shopify theme and put Youtube or Vimeo url there.
If you need help for this please contact here: https://www.task4store.com/pages/contact-us
Thanks & Regards
MS Web Designer
|a minute ago|