One of Smash's recurring themes is striking a balance between getting what you want and staying true to your own ideals -- and some characters do it better than others. There's also a subtler message that true talent will take you far if you work hard enough and that it takes a team of talented people to make something great.
Regular scenes of simulated intercourse without nudity (visible bare shoulders under sheets, sides of breasts, etc.). Post-coital scenes of same-sex couples in bed. Use of terms like "sexy" with a few provocative dance moves. Some degree of sex appeal is essential to the Marilyn character.
The show goes out of its way to change familiar brand names (subbing YouLenz for YouTube, etc.), but a few slip in, including iPad. Songs from the series are available for purchase via iTunes, with plans to launch a full-scale musical in the future, depending on the series' success.