# Library

The Library contains reusable collections of content that can be used across multiple channels. This includes filler content for gaps in your schedule and custom shows that group videos together.

<div class="grid cards" markdown>

-   **[Filler](filler.md)**

    ---

    Collections of videos to play during [Flex](../channels/flex.md) time segments, such as commercials, bumpers, or interstitials.

-   **[Custom Shows](custom-shows.md)**

    ---

    Create virtual TV shows by grouping videos into episodes. Scheduling tools will treat these as a single show.

-   **[Smart Collections](smart-collections.md)**

    ---

    Dynamic collections that automatically include content matching specified criteria.

</div>

## When to Use Each

| Feature | Use Case |
|---------|----------|
| **Filler** | Commercials, station IDs, bumpers, short clips to fill gaps |
| **Custom Shows** | YouTube series, home videos, or any content you want to treat as episodic |
| **Smart Collections** | Auto-updating playlists based on genre, year, rating, etc. |
