[Looney tunes] So this is a bit of a stretch and I even forgot they existed. But I do hope the new looney tune shorts add some of the old Merrie Melodies characters that got left behind

Like Foxy, Roxy, and Goopy

And yes there is a distinction between the two even though they all use the same characters

a lot of the same*

The actual difference between the two is that Merrie Melodies where shorts that had the music be the centerpiece where as Looney tunes were the gag shorts

basically they were advertisments for Warner Brothers music

also color

Though once Looney tunes went color it became basically indistiguishable but still