Worth your time
These videos are on the Co. Tyrone site but they applies to Research anywhere in Ireland:
Boyd Gray’s Family History Workshop Videos: A guide to getting started in Irish Research.
Not professionally-made videos, but this is good information, and he shows you the techniques.
They are also on YouTube:
He also has videos on “Making the Most of Rootireland.ie” here: https://www.facebook.com/notes/west-ulster-genealogy-services/making-the-best-use-of-rootsireland-aka-ifhf-for-births-marriages-and-deaths/10151844539802303
When we buy a certificate, we want it to be the right one! He shows us how to get the one you want.