Financially speaking, the “Despicable Me” franchise is in fine form. Over the course of five feature films (with number six arriving this week), the Illumination Animation property has become (deep breath): the highest-grossing animated film franchise, the 15th highest-grossing film franchise of all time and, one of the highest-grossing media franchises of all time. These movies are bankable! And while we expect “Despicable Me 4” — the first new feature in the series in two years, but at this point, there’s far too many of them. Overstuffed with characters, storylines, and kid-friendly gags, Chris Renaud’s latest film makes a strong — if accidental — case that it’s high time we turn “Despicable Me” and “Minions” into, gasp, a TV series. “Despicable Me 4” already feels like six episodes of just such a show, crammed into a single unwieldy, disconnected, and oddly episodic outing.

It opens with Gru (voiced by…