Aside from the DVDs (which are hard to find for me), how can one watch the different Gundam series legally? Particularly interested with Turn A Gundam, but would appreciate a streaming service (or similar) that has a complete or at least has the most number of series offered. Already watched most of UC, G Gundam, Wing Gundam, Gundam 00, IBO, SEED, and Build Fighters -- so those that offer stuff other than these would be great. I'm okay with just the series, i.e. no issues if there are no OVAs or movies.
I can't help with streaming in the Philippines, but there was a DVD release a while back in the US, and apparently, it will be released on Blu-Ray in March, and it looks like you are Region 1/A like the US, so if you are willing to go that route, it should work. I assume you don't want to actually buy physical media so that probably doesn't help. Anyway, I hope you get to watch it soon. It's one of, if not my favorite Gundam series, and I hope you enjoy it as much as I do.