This was how I got 'niche' news before we had the internet. Every morning before school I would hit text, type in the page number and get the latest F1 news. If I remember correctly when there were multiple pages it would cycle through them automatically which meant that if you didn't read quick enough you had to wait for it to cycle back around so you could finish the page. It used to stay on each page for about 30 seconds so this was a real pain on 4/5 page stories.
And, similar to browsing multiple websites to read different sources, I would use the BBC's Ceefax and then switch to ITV to read their teletext service.
I guess it's a little late to let you into the secret now, but: that was what the 'hold' button on the remote was for - it would prevent the page reloading the next time the page number was transmitted. Of course, when you finish reading page 1, and 'unhold' it, the next version of the page to load might not be page 2, perhaps, but say, page 8. So you have to wait for 2 to come round again....
And, similar to browsing multiple websites to read different sources, I would use the BBC's Ceefax and then switch to ITV to read their teletext service.