It specifically refers to the areas that may be searched in pursuit of the items stipulated in the warrant in relation to evidence of any other criminal acts which may be recovered.
Televisions could not be hidden inside a folder of papers, or stored on a hard drive, thus excluding those from being searched.
Generally these issues do not become relevant, as investigators are careful to apply for warrants that cover the maximum areas that there is evidence to allow for.
There are some cases where even a warrant that only specifies a single item to be looked for can reasonably be applied to almost every conceivable area, most notably illegal drugs which could be present in almost any quantity from milligrams to kilograms, thus reasonably being concealed in almost anything.
Even if such evidence is found, if it is outside the scope of the areas the warrant permits then it is very likely to be excluded from trial as an illegal search and seizure.