Here are some comments ...
See as general introduction : Aristotle: Poetics by Joe Sachs.
Art is imitation :
Epic poetry and tragedy, as also comedy, dithyrambic poetry, and most fluteplaying
and lyre-playing, are all, viewed as a whole, modes of imitation [1447a14-1447a18].
The objects the imitator represents are actions, with agents who are necessarily either good men or bad — the diversities of human character being nearly always derivative from this primary distinction, since it is by badness and excellence men differ in character. It follows, therefore, that the agents represented must be either above our own level of goodness, or beneath it, or just such as we are [1448a1-1448a18].
Poetry, however, soon broke up into two kinds according to the differences of character in the individual poets; for the graver among them would represent noble actions, and those of noble personages; and the meaner sort the actions of the ignoble [1448b24-1449a6].
From what we have said it will be seen that the poet’s function is to describe, not the thing that has happened, but a kind of thing that might happen, i.e. what is possible as being probable or necessary. [...] Hence poetry is something more philosophic and of graver import than history, since its statements are of the nature rather of universals, whereas those of history are singulars [1451a37-1451b26].
Tragedy, however, is an imitation not only of a complete action, but also of incidents arousing pity and fear [1452a3-1452a12].
The tragic pleasure is that of pity and fear, and the poet has to produce it by a work of imitation [1453b12-1453b37].
Apart from tragedy and epic poetry, very few words are spent on comedy : we can think that this is due to the "less noble" sentiments that comedy arises.
Now for the "middle form" of poetic imitation : the imitation of men and their actions as "they are", no better nor worse.
I think that the issue is, in terms of Aristotle's approach (assuming that there are no other sources available regarding "poetical realism" that I do not know) : what is the aim of an imitation of reality "as it is" ? What sentiments (passions) it must arise ?
In my very very personal opinion, it is hard to say that e.g. "reality tv" aims at arising some passion... at least not a "noble" one. If so, I'm tempted to classify it far below comedy.