Bad Thoughts Season 1 explores six universal themes across its six episodes: jobs, success, family, love, communication, and health. Each episode loosely revolves around one of these themes, with some sketches spanning multiple episodes and including a mix of dark, crude, and highly inappropriate humor.

The series integrates much of Tom Segura's stand-up comedy into its sketches, including callbacks to his early material. For example, it features an awkward airplane conversation and adaptations of his father's Vietnam War stories into a problematic children's play. This blending of stand-up and sketch elements forms a core part of the show's narrative style.

The humor in Bad Thoughts Season 1 is dark, crude, unapologetically offensive, and often highly inappropriate. It includes low-brow comedy, scatological jokes, sex jokes, and shock value, with a delivery that is deadpan and brutally honest. The show pushes boundaries and is not suitable for viewers seeking clean or lighthearted comedy.

Some sketches in Bad Thoughts Season 1 play through more than one episode, indicating recurring storylines. However, the show is structured as a variety sketch comedy series rather than a continuous narrative with recurring characters. The focus is more on thematic exploration and comedic bits than on character development.

While Bad Thoughts Season 1 is filled with dark and sometimes over-the-top obscene humor, there are moments of brilliance and genuine belly laughs interspersed throughout. The show balances its shock value and crude jokes with creative setups and occasionally thought-provoking content, though some viewers find the darker content overwhelming or off-putting.