Why does it take 2 people to read the news on RTE?

Anyway try and tune into Nuacht or TG4 to see the next nice lady that will eventually end up reading the news on RTE1 or RTE2.
Doesn't improve my Irish though.
You have to have the sound turned up if you want to pick up the cupla focail.
 
Reading through this post, I cant believe know one has mentioned that rarely is there an evening either on 6pm or 9pm RTE news when something technical doesnt go wrong. The sheer entertainment value is something else, to watch the newsreaders apologising for the lack of sound, picture, report, wrong pictures with particular news items, then appearing uncomfortable, irritated... The reason they have two news readers is to give the other a break from having to apologise throughout the bulletin!