Where to watch official matches?
Depends. International, National, Continental etc…
Most go servers (even OGS) show some of them.
Try IGS, Fox, KGS,…
You can find some older with comments on youtube too (For example with M. Redmond comments)
@nihonkiin_ch on You Tube
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Baduk TV for Korean
You can see scheduled streams as well as past ones etc.
might have some game commentaries
Or maybe
Possibly in addition to benjitos link
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