To play the Talking Newspaper on Google Home say:
OK Google, play the Witney Talking News Podcast
That’s really all you need, but whilst you are listening there are a number of useful phrases that you can use:
To play a previous or week’s edition, say
OK Google, previous episode
To replay something or skip ahead, you can say phrases like:
OK Google, back 30 seconds
OK Google, forwards 2 minutes
To alter the speed of the playback, you can say:
OK Google, speak slower
OK Google, speak faster
OK Google, speak normal speed
There are more options too, including pause and resume, details of which can be found from Google Support