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I don't usually watch documentaries, as they simplify and distort, as well as being slow and boring.
But I did watch some of this stuff, and it appears to be nonsense.
That the Universe is expanding is almost incontrovertible, as is the big bang origin of the Universe. The expansion of the Universe rests on several pillars of solid evidence, as does the origin of the Universe in a "cosmic fireball". There are simply no other hypotheses that explain the observations.
The unknown nature of dark energy and dark matter has no bearing on this.
Quoting a few iconoclasts, as in these videos, does not change this.
For example, these videos feature Halton Arp. His view that the redshifts of quasars is not due to cosmic expansion would be accepted by almost no other astrophysicist, and there is little evidence to support it. The luminous bridges that appear to connect some individual galaxies with quasars having widely different redshifts are now considered to be an imaging artefact. That leaves some statistical evidence that Arp quotes in his favour (not in the video but in the literature). This evidence, like most statistical arguments, is subjective.
What the video does not include is the evidence in favour of redshifts being indicative of the expansion of the Universe. We can see this by fainter objects having higher redshifts, and higher redshift galaxies looking younger, undergoing more interactions, and have higher rates of central core activity consistent with a younger Universe.
I notice that John Dobson is also featured. He believes in mystic nonsense and is not an authority on astronomy.
If you are interested in videos, there are quite a few good ones around. I especially liked Origins by Neil Degrasse Tyson. The book is highly recommended too.
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