If you plan on tuning in at the time, tune in to 105.7 FM in Christchurch. Alternatively, you can stream online by going to Pulzar's website (link button below) and click where it says "Click here to listen live" if you're not within the station's broadcasting range.
However, if you miss the show for any reason (I'll forgive you), there will be a recording of it online at a later date (but not too late). I will be posting the link for this as well.
See you in 5 hours time!