Also $9.99 on Amazon (US)
https://www.amazon.com/dp/B074SY51TB/

Also $9.99 on iTunes (US)
https://itunes.apple.com/us/tv-season/the-orville-season-1/id1265256614

Also on iTunes Canada, apparently.

... Never used Amazon before ...

Here is Amazon's information about purchasing a Season Pass:
https://www.amazon.com/gp/help/customer/display.html?nodeId=201480590

After reading that, go back to the show page and
find and click the blue "More Purchase Options" link on the right.
Then, among the purchase options, you'll see two Season options,
one in "HD" (high-definition) and one in "SD" (standard-definition).
(HD gives a nice sharp picture if your computer can handle it;
but I use SD because my old underpowered computer can't play HD smoothly.)

Alternatively, besides Amazon, the show can also be purchased from
Google Play or Apple's iTunes or Walmart's Vudu.

 
BTW, if you want to save money, recent episodes are legally free
on "Yahoo View" (which is a limited free Hulu outlet for nonsubscribers):
  https://view.yahoo.com/show/the-orville

The Fox website also has recent episodes.
  https://www.fox.com/the-orville/

If you have a Hulu subscription, you can watch the show there:
  https://www.hulu.com/the-orville

 
(All of the above are currently US-only, AFAIK.)

Don't they have it on amazon? I found this:

https://www.amazon.com/The-Orville-Season-1/dp/B074SY51TB/ref=cm_cr_arp_d_product_top?ie=UTF8

I think that's a streaming service? I dunno how ideal it is. Never used amazon before. I'm going to try pay it money and hope it's a streaming service.