I’m sure you can - a colleague was regaling me with it recently and saying how it was an Institution in Ireland. He also showed me the Rose of Tralee competition (which out Father Ted-Ed the Lovely Girls competition).
Total nonsense above about getting into the audience being hard to do and about who you know. It's a lottery available to all and is well advertised and free to enter.There are no tickets available to RTE staff etc and this is common knowledge. If it weren't, it would be a nightmare for everyone who worked in on it or near it with every being canvassed for!