---
title: "SecondScreen (discovery)"
slug: "170-discovery-secondscreen-schemas"
updated: 2025-12-09T17:45:03Z
published: 2025-12-09T18:02:06Z
canonical: "docs.developer.comcast.com/170-discovery-secondscreen-schemas"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.developer.comcast.com/llms.txt
> Use this file to discover all available pages before exploring further.

# SecondScreen (discovery)

**SecondScreen Schema 1.7.0 | Discovery SDK**

## Types

### SecondScreenEvent

An a message notification from a second screen device

```
type SecondScreenEvent = {
  type: 'dial'
  version?: string
  data?: string
}
```

---