Question: What did Hawking call the Big Bang theory?
About the article "Gravitational wave", section "Astrophysics and gravitational waves".

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 and the Big Bang.
Stephen Hawking in particular has addressed a connection between time and the Big Bang.
In "A Brief History of Time" and elsewhere, Hawking says that even if time did not begin with the Big Bang and there were another time frame before the Big Bang, no information from events then would be accessible to us, and nothing that happened then would have any effect upon the present time-frame.
Upon occasion, Hawking has stated that time actually began with the Big Bang, and that questions about what happened "before" the Big Bang are "meaningless".
This less-nuanced, but commonly repeated formulation has received criticisms from philosophers such as Aristotelian philosopher Mortimer J. Adler.
Scientists have come to some agreement on descriptions of events that happened 10−35 seconds after the Big Bang, but generally agree that descriptions about what happened before one Planck time (5 × 10−44 seconds) after the Big Bang are likely to remain pure speculation. 
In theoretical physics, the Hartle–Hawking state, named after James Hartle and Stephen Hawking, is a proposal concerning the state of the universe prior to the Planck epoch.
Hartle–Hawking is essentially a no-boundary proposal that the universe is infinitely finite: that there was no time before the Big Bang because time did not exist before the formation of spacetime associated with the Big Bang and subsequent expansion of the universe in space and time.
Hartle and Hawking suggest that if we could travel backward in time toward the beginning of the universe, we would note that quite near what might have otherwise been the beginning, time gives way to space such that at first there is only space and no time.
Beginnings are entities that have to do with time; because time did not exist before the Big Bang, the concept of a beginning of the universe is meaningless.
According to the Hartle–Hawking proposal, the universe has no origin as we would understand it: the universe was a singularity in both space and time, pre-Big Bang.
Thus, the Hartle–Hawking state universe has no beginning, but it is not the steady state universe of Hoyle; it simply has no initial boundaries in time nor space.  
  "The Culture Show".
(Simpsons special)  "Alien Planet".
(Discovery Channel special)  "I Love the World".
(Discovery Channel commercial)  "Late Night with Conan O'Brien" (Episode 1752).
He was in a skit in which he made a phone call to guest Jim Carrey.
"Into the Universe with Stephen Hawking".
A three part miniseries about aliens, time travel and the past and present of mankind which is hosted by Hawking's voice  "Masters of Science Fiction".
A Science Fiction anthology series which is hosted by Hawking's (off screen) voice.
"Red Dwarf".
Hawking appeared in a special programme about the popular British science fiction series.
He praised its creators for their witty use of (pseudo) scientific theories and said he enjoyed watching the show.
"TV Offal".
Hawking appeared with host Victor Lewis-Smith in the pre-titles sequences of this show.
*At the beginning of the Season 6 cliffhanger, "", Data is seen playing poker with holographic depictions of Stephen Hawking, Sir Isaac Newton, and Albert Einstein.
Hawking portrayed his own hologram for this episode, making him the only guest in any "Star Trek" series to play himself.
When taking a tour of the set, he paused at the Warp core, smiled, and said, "I'm working on that."
During the tour, Hawking requested, and was allowed, to sit in the captain's chair of the Enterprise-D. *Brent Spiner ("Data") reportedly quipped, in an obviously tongue-in-cheek manner, that Hawking's cameo was "the most notable moment in television history since Albert Einstein guest-starred on "Gunsmoke"".
"The 11th Hour".
In this film about the effects of human activity on the environment Hawking gave explanations of these effects.
"Genius of Britain".
Hawking presented the links for a five-part 2010 Channel 4 series profiling British scientists.
"The Big Bang Theory".
(Episode 108: The Hawking Excitation)  
The most important applications of semiclassical gravity are to understand the Hawking radiation of black holes and the generation of random gaussian-distributed perturbations in the theory of cosmic inflation, which is thought to occur at the very beginnings of the big bang. 
While the Big Bang model is well established in cosmology, it is likely to be refined in the future.
Little is known about the earliest moments of the universe's history.
The Penrose–Hawking singularity theorems require the existence of a singularity at the beginning of cosmic time.
However, these theorems assume that general relativity is correct, but general relativity must break down before the universe reaches the Planck temperature, and a correct treatment of quantum gravity may avoid the singularity.
There may also be parts of the universe well beyond what can be observed in principle.
If inflation occurred this is likely, for exponential expansion would push large regions of space beyond our observable horizon.
Some proposals, each of which entails untested hypotheses, are:  Models including the Hartle–Hawking boundary condition in which the whole of space-time is finite; the Big Bang does represent the limit of time, but without the need for a singularity.
Brane cosmology models in which inflation is due to the movement of branes in string theory; the pre-big bang model; the ekpyrotic model, in which the Big Bang is the result of a collision between branes; and the cyclic model, a variant of the ekpyrotic model in which collisions occur periodically.
Chaotic inflation, in which inflation events start here and there in a random quantum-gravity foam, each leading to a "bubble universe" expanding from its own big bang.
Proposals in the last two categories see the Big Bang as an event in a much larger and older universe, or multiverse, and not the literal beginning.