ABC has been something of a loner within the Disney (NYSE:DIS) conglomerate, plodding its own path outside the integrated approach that binds Disney’s disparate businesses. But ABC has been losing the ratings wars, and has now decided to borrow some ammo from Disney. So, forthcoming TV shows are likely to borrow heavily from Disney media properties or characters. But ABC must tread a fine line here – for danger of alienating more sophisticated customers that may be irritated by too much of Disney stuff, as well as sensitive producers who may balk at lifting content from sister units. But a judicious selection may just do the trick and put paid to the ratings troubles at ABC. It is pinning high hopes on the pilots under way for the next TV season – these include “Marvel’s Agents of S.H.I.E.L.D.,” based on ancillary characters from “The Avengers,” which last year took in $1.5 billion at the global box office for Marvel Entertainment, a Disney unit, and “Once: Wonderland,” a spinoff of “Once Upon a Time,” a successful fairy tale television series.