Direct answer: It sounds like you’re asking about why “shifting gears” isn’t happening tonight, which could have two different meanings depending on context:

• If you’re asking about a TV show or a program titled “Shifting Gears” (or a show segment with that name) not airing tonight: TV schedules can be delayed or pre-empted for various reasons (special programming, breaking news, sports, or production delays). Check the network’s official schedule or their social channels for the latest updates, and consider looking on a TV listings site for any notices about tonight’s episode. If you can share the show’s network or region, I can help narrow down where to look for the official schedule.
• If you’re using the phrase idiomatically (shifting gears = changing topics or activities) and you mean something isn’t changing gears tonight: there could be a planned plan or routine you were expecting that didn’t switch as intended. In daily life, “shifting gears” can fail if the environment or context didn’t permit the change (for example, staying in the same activity despite wanting to switch), or if a person or system is temporarily blocked (e.g., a paused project, a scheduling conflict, or a rule/lock preventing the change). In such cases, identifying who or what is responsible for the switch, and whether a prerequisite condition (like having momentum, resources, or permission) is missing, can help.

If you can share more details, such as:

• Are you talking about a specific show, event, or routine?
• What region or network is involved?
• What exactly you expected to happen tonight?

I can give more targeted guidance and steps to troubleshoot or verify the schedule.