>>203>people on 4chan said we'd never get new users to our board ha!
anyway, welcome aboard.
If you can't tolerate old shitty special effects, the classic series probably isn't the place for you. It has some periods where it's great, like pic related, but if that's that big of a turn off for you, then you should avoid it even though I think it's a mistake.
If you want to catch up to the new stuff quickly, start with Series 5, first episode "The Eleventh Hour".
If you want to do the whole new series (be aware the special effects for the first two series are sometimes goofy except in the important episodes), then start with S1, "Rose" (not really a good episode imo but necessary)