FieldScreen TV — Channel refresh preview

Refresh your IPTV channel lineup without entering the provider details again. In TV guide · IPTV, choose Refresh channels beside Refresh guide.

• Reloads channels, names, and groups from your M3U URL or Xtream account, including session-only connections.
• Keeps unchanged stream URLs playing and retains your current channel search and any group still present.
• Shows the last successful channel update, then refreshes the XMLTV guide for the updated lineup.
• Keeps the previous lineup if the provider is unavailable or the refresh fails.
• For imported M3U files, asks for a replacement file and updates its encrypted saved copy when remembered.

Removed channels or changed stream URLs return their assigned panes to the dashboard. No automatic app updater is included: replace your previous AppImage with this download at the same path used by your Steam shortcut.

Use FieldScreen-TV-0.1.0-preview.3-Linux-x86_64.AppImage, or the portable .tar.gz alternative. Provider details are entered privately inside the installed app; no IPTV credentials or NFL broadcasts are included in the download.

Validation: 21 automated tests, production build, package-content checks, and Linux AppImage launch check. New checks cover M3U/Xtream refresh, uninterrupted media responses, failed refreshes, file replacement, saved settings, cancellation, and stale guide responses. Physical Steam Deck/TV validation remains pending.