Lori Loughlin was the comics Black Canary though.
Hmm, more or less. Although she was named Carolyn Lance instead of Dinah Drake or Lance.
All four seasons were released on DVD, which is how I saw it. (It's probably also streaming somewhere, if you despise all things decent and true.)
Superboy was streaming on DC Universe back when I was a subscriber, which is how I was able to watch it for the review series currently running on my Patreon page. I don't know if it made the jump to HBO Max.
It's not actually good -- the first season in particular is literally the most incompetent allegedly professional production I think I've ever seen -- but it's a low-rent delight, and does improve steadily as it goes along. Personally, I adore the series, though it's a cautious recommend if you can't embrace the glorious cheese of it all.
I agree where the first two seasons are concerned, mostly, but I differ strongly about the last two. Basically it's two separate shows -- the first two seasons under the title
Superboy and the revamped seasons 3-4 under the title
The Adventures of Superboy.
Superboy season 1 started out incredibly terrible and incompetent, then improved when it signed actual Superman comics writer-editors onto its staff. Season 2 started out about as good as the latter half of season 1, but then deteriorated and became pretty weak in the latter half. But even at its best, it was a superficial, cheesy action show, fun and Silver Agey but not at all deep or thoughtful.
Yet I consider the latter two seasons,
The Adventures of Superboy, to be the best live-action DC show of the 20th century, even better than its contemporary
The Flash, which I liked a lot. It got a lot smarter and richer, the first TV series that ever really delved into the psychology of Clark Kent or Lex Luthor and examined their motivations and inner conflicts. It told stories that were actually
about something rather than just being action or humor. It had a very tight budget and did a lot of bottle shows, but it made good use of the limited settings of bottle shows to do strong character stories. And it had a strong cast, especially Stacy Haiduk as Lana and Sherman Howard as Luthor.