diff --git a/.strict-typing b/.strict-typing
index a304f771cd8..2516beaf36a 100644
--- a/.strict-typing
+++ b/.strict-typing
@@ -74,6 +74,7 @@ homeassistant.components.apcupsd.*
 homeassistant.components.apprise.*
 homeassistant.components.aprs.*
 homeassistant.components.aqualogic.*
+homeassistant.components.aquostv.*
 homeassistant.components.aranet.*
 homeassistant.components.aseko_pool_live.*
 homeassistant.components.assist_pipeline.*
diff --git a/homeassistant/components/aquostv/media_player.py b/homeassistant/components/aquostv/media_player.py
index 34d5e4161fb..a87756334e2 100644
--- a/homeassistant/components/aquostv/media_player.py
+++ b/homeassistant/components/aquostv/media_player.py
@@ -1,7 +1,9 @@
 """Support for interface with an Aquos TV."""
 from __future__ import annotations
 
+from collections.abc import Callable
 import logging
+from typing import Any, Concatenate, ParamSpec, TypeVar
 
 import sharp_aquos_rc
 import voluptuous as vol
@@ -25,6 +27,9 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 
+_SharpAquosTVDeviceT = TypeVar("_SharpAquosTVDeviceT", bound="SharpAquosTVDevice")
+_P = ParamSpec("_P")
+
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = "Sharp Aquos TV"
@@ -79,10 +84,12 @@ def setup_platform(
     add_entities([SharpAquosTVDevice(name, remote, power_on_enabled)])
 
 
-def _retry(func):
+def _retry(
+    func: Callable[Concatenate[_SharpAquosTVDeviceT, _P], Any],
+) -> Callable[Concatenate[_SharpAquosTVDeviceT, _P], None]:
     """Handle query retries."""
 
-    def wrapper(obj, *args, **kwargs):
+    def wrapper(obj: _SharpAquosTVDeviceT, *args: _P.args, **kwargs: _P.kwargs) -> None:
         """Wrap all query functions."""
         update_retries = 5
         while update_retries > 0:
@@ -125,7 +132,7 @@ class SharpAquosTVDevice(MediaPlayerEntity):
         # Assume that the TV is not muted
         self._remote = remote
 
-    def set_state(self, state):
+    def set_state(self, state: MediaPlayerState) -> None:
         """Set TV state."""
         self._attr_state = state
 
diff --git a/mypy.ini b/mypy.ini
index bc7c33396ff..3e4385fddcb 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -500,6 +500,16 @@ disallow_untyped_defs = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.aquostv.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.aranet.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true