Did I see Monty Don replant spring onions?

in Fruit & veg
About 3 or 4 weeks ago did anyone see Monty Don replanting spring onions that had already been harvested? The spring onions stiil had the green shoots on, and the roots looked like they had only just been pulled out of the ground. I assume they may have been put back in the soil to grow larger. Could I have been right, or am I mistaken?
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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Probably been in the ground about 2 weeks now.