This was, as of 1990, the latest attempt to produce a comic book superhero show on network TV, which had happened over the years, with varying degrees of success (e.g., the George Reeve's Superman series in the 1950s, the Incredible Hulk and Wonder Woman series in the 1970s, and Superboy in the 1980s). This one aired on CBS and was totally an attempt to capitalize on the popularity of the 1989 Batman movie. In fact, the soundtrack for the series was very similar to the score used in the Batman movie, even sounding nearly identical at times.
This starred John Wesley Shipp as Barry Allen, who is a forensic scientist working for the Central City police, is struck by lightning and doused in chemicals in his lab giving him super speed. He is joined by Research scientist Dr. Tina McGee (played by Amanda Pays) who works at S.T.A.R. Labs and helps Barry fight crime while trying to understand how his powers are developing. Unlike the current version of The Flash running on the CW, this one is a procedural case/villain of the week show and does not have the larger story arcs from the comics like Barry's dad being in jail for the murder of his wife, or elements like that. It also never clearly defines the relationship between Barry and Tina. In one episode they would clearly have a relationship as just colleagues and in the next, they would be made out as potential love interests, and it would swing back and forth. The was also no real "big bad" in the series, although Mark Hamill was being built up as one playing The Trickster.
The DVD set is very bare-bones. It does have captions, but there are not really any extras or bonus material, just the episodes themselves. I do believe that the series is available on some streaming services, so if you only buy physical discs when there are a lot of extras available, you may want to go that route.
Overall, the series was good and really better than it gets credit for. It was definitely still finding its footing at the time it was canceled, and CBS pretty quickly juggled what days it was aired on, and given the smaller fan base that the comic book shows tend to have, and it kind of just ended with a whimper. Of course, the series was brought into the Arrowverse (which I argue could also be called the Smallvilleverse) during the Crisis on Infinite Earth's storyline. John Wesley Shipp did play different characters on the Arroverse's version of The Flash, including playing other Universe's versions of The Flash, but it was in Crisis in which we saw him as the 1990 version of the character. So, while the series did not get a proper ending (since it was canceled after the 22 episodes had aired) the character does get a conclusion in the Arrowverse. It is definitely worth watching.