The moment Carlton knew there was nothing left from Series 1-3 to release came the first release for Series 4. Although if those are aware of the tape's contents being identical to its Australian counterpart (first instance of this being the case in a while, actually), if I'm to be real with you, part of me theorises the name change was mainly down to an appeal and sales perspective, as a term such as 'Nursery Rhymes' tends to ultimately sell decently enough for pre-school brands that carry the moniker depending on the product.
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