diff --git a/CHANGELOG.md b/CHANGELOG.md
index b97203a9d..019cafd58 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,14 @@ All notable changes to **Pipecat** will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.0.73] - 2025-06-26
+
+### Fixed
+
+- Fixed an issue introduced in 0.0.72 that would cause `ElevenLabsTTSService`,
+  `GladiaSTTService`, `NeuphonicTTSService` and `OpenAIRealtimeBetaLLMService`
+  to throw an error.
+
 ## [0.0.72] - 2025-06-26
 
 ### Added
diff --git a/src/pipecat/pipeline/task.py b/src/pipecat/pipeline/task.py
index d17e8c771..0cf294b05 100644
--- a/src/pipecat/pipeline/task.py
+++ b/src/pipecat/pipeline/task.py
@@ -463,7 +463,7 @@ class PipelineTask(BasePipelineTask):
             self._process_push_queue(), f"{self}::_process_push_queue"
         )
 
-        await self._observer.start(self._enable_watchdog_timers)
+        await self._observer.start()
 
         return self._process_push_task
 
diff --git a/src/pipecat/pipeline/task_observer.py b/src/pipecat/pipeline/task_observer.py
index db03a73d1..40f4c953c 100644
--- a/src/pipecat/pipeline/task_observer.py
+++ b/src/pipecat/pipeline/task_observer.py
@@ -77,7 +77,7 @@ class TaskObserver(BaseObserver):
         if observer in self._observers:
             self._observers.remove(observer)
 
-    async def start(self, watchdog_timers_enabled: bool = False):
+    async def start(self):
         """Starts all proxy observer tasks."""
         self._proxies = self._create_proxies(self._observers)
 
diff --git a/src/pipecat/services/elevenlabs/tts.py b/src/pipecat/services/elevenlabs/tts.py
index 3b1a3a20c..2e04bd1b1 100644
--- a/src/pipecat/services/elevenlabs/tts.py
+++ b/src/pipecat/services/elevenlabs/tts.py
@@ -428,7 +428,7 @@ class ElevenLabsTTSService(AudioContextWordTTSService):
                 self._cumulative_time = word_times[-1][1]
 
     async def _keepalive_task_handler(self):
-        KEEPALIVE_SLEEP = 10 if self.watchdog_timers_enabled else 3
+        KEEPALIVE_SLEEP = 10 if self.task_manager.task_watchdog_enabled else 3
         while True:
             self.reset_watchdog()
             await asyncio.sleep(KEEPALIVE_SLEEP)
diff --git a/src/pipecat/services/gladia/stt.py b/src/pipecat/services/gladia/stt.py
index 27b6ff1d9..0aa144fda 100644
--- a/src/pipecat/services/gladia/stt.py
+++ b/src/pipecat/services/gladia/stt.py
@@ -485,7 +485,7 @@ class GladiaSTTService(STTService):
     async def _keepalive_task_handler(self):
         """Send periodic empty audio chunks to keep the connection alive."""
         try:
-            KEEPALIVE_SLEEP = 20 if self.watchdog_timers_enabled else 3
+            KEEPALIVE_SLEEP = 20 if self.task_manager.task_watchdog_enabled else 3
             while self._connection_active:
                 self.reset_watchdog()
                 # Send keepalive (Gladia times out after 30 seconds)
diff --git a/src/pipecat/services/neuphonic/tts.py b/src/pipecat/services/neuphonic/tts.py
index 079a29420..b92e5966c 100644
--- a/src/pipecat/services/neuphonic/tts.py
+++ b/src/pipecat/services/neuphonic/tts.py
@@ -233,7 +233,7 @@ class NeuphonicTTSService(InterruptibleTTSService):
                     await self.push_frame(frame)
 
     async def _keepalive_task_handler(self):
-        KEEPALIVE_SLEEP = 10 if self.watchdog_timers_enabled else 3
+        KEEPALIVE_SLEEP = 10 if self.task_manager.task_watchdog_enabled else 3
         while True:
             self.reset_watchdog()
             await asyncio.sleep(KEEPALIVE_SLEEP)
diff --git a/src/pipecat/services/openai_realtime_beta/frames.py b/src/pipecat/services/openai_realtime_beta/frames.py
index c28c9212f..25e7c409c 100644
--- a/src/pipecat/services/openai_realtime_beta/frames.py
+++ b/src/pipecat/services/openai_realtime_beta/frames.py
@@ -7,9 +7,12 @@
 """Custom frame types for OpenAI Realtime API integration."""
 
 from dataclasses import dataclass
+from typing import TYPE_CHECKING
 
 from pipecat.frames.frames import DataFrame, FunctionCallResultFrame
-from pipecat.services.openai_realtime_beta.context import OpenAIRealtimeLLMContext
+
+if TYPE_CHECKING:
+    from pipecat.services.openai_realtime_beta.context import OpenAIRealtimeLLMContext
 
 
 @dataclass