Hi there! I see you're having trouble with downloading and seeing the HITV app on your Android device. Let's get this sorted out together. To help me understand better, could you please tell me:

1. Are you trying to download the HITV app from the Google Play Store or another source?
2. When you say "don't app showing," do you mean the app does not appear in your app list after installation, or are you unable to find it to install it at all?
3. Have you seen any error messages during download or installation?

Meanwhile, here are some initial steps you can try that often resolve such issues on Android devices:

Step 1: Check Internet Connection
Make sure you have a stable internet connection, either Wi-Fi or mobile data.

Step 2: Clear Play Store Cache & Data
- Go to Settings > Apps > Google Play Store.
- Tap on Storage.
- Clear Cache and then Clear Data.
- Restart your device and try downloading again.

Step 3: Check Storage Space
Ensure your device has enough free storage to download and install the app.

Step 4: Enable Installation from Unknown Sources (if installing via APK)
If you are downloading the app outside the Play Store, check in Settings > Security that installation from unknown sources is allowed.

Step 5: Restart Your Device
Sometimes a simple reboot can fix glitches.

If you’ve tried these and still can’t download or see the app, let me know any error details or what you’ve done so far. Then, I can walk you through some more advanced troubleshooting.

Are you comfortable performing these steps? Let me know how it goes!