Here's one that actually seems simple:

1. Make your text object in Carrara.
2. Select the text in the scenery room.
3. Go to the modifiers tab in the sidebar.
4. Click the plus button.
5. When the dropdown comes up, go to waves and pick the wave modifier.
6. Set phase at 0 at beginning of timeline and 100 at the end of timeline.
7. Adjust wave modifier properties as needed.
8. Alter phase in timeline with tweener if needed. (Oscillate + sawtooth @ 100% up-phase looks good, adjust for repeats.)

If that's not easy-peasy, I'm not certain what is.

Now I'm not sure if the text itself can be made to scroll, but this gives a decent start. I guess you could have one long line of text and move it on one axis to get an appropriate effect. (I'm not sure if Carrara limits text length, so that'll need some testing.)

Oh be careful about editing the text while the modifier is applied. Seems to cause an odd bug that keeps tweeners changes from being applied. (You'll get an error dialog first though.)

I'll post a vid link after my example renders.

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Barbequed Pixels?

Your friendly neighborhood Wings3D nut.
Also feel free to browse my freebies at ShareCG.
There might be something worth downloading.