You get a Swiss Spaghetti Harvest, well below the volume produced by the Italians.
Be sure to read the brilliant description of the entire event as posted by the Alexandra Palace Television Society archives.
Click Here for link to youtube posting
And, to viewers who wanted to grow their own Spaghetti Tree?
They replied with that purely British humour: Simply stick a sprig of spaghetti in a can of tomato sauce and hope for the best.
Buon Pesce d'Aprile! (April Fish, not Fools in Italy)