Ensure you have Python or any other preferred programming language installed on your system. This guide will assume you're using Python. Install essential libraries such as `requests` for HTTP requests, and `pika` for interacting with RabbitMQ. You can do this using pip:
```bash
pip install requests pika
```

Determine the API endpoint for TVmaze's schedule data. The typical endpoint for TVmaze schedule data is `http://api.tvmaze.com/schedule`. Use the `requests` library to make a GET request to this endpoint:
```python
import requests

response = requests.get('http://api.tvmaze.com/schedule')
if response.status_code == 200:
schedule_data = response.json()
else:
print("Failed to retrieve data")
```

Once you have the JSON data from TVmaze, parse this data to extract relevant fields that you want to transfer. For instance:
```python
for show in schedule_data:
show_id = show['id']
show_name = show['name']
# Add more fields as required
```

Before you publish data to RabbitMQ, ensure RabbitMQ server is installed and running. You can install it using package managers like `apt`, `yum`, or download it from the RabbitMQ website. Start the RabbitMQ service:
```bash
sudo systemctl start rabbitmq-server
```

Use the `pika` library to establish a connection with the RabbitMQ server and declare a queue to which you want to publish the TVmaze data:
```python
import pika

connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()

channel.queue_declare(queue='tvmaze_schedule')
```

Convert the parsed data into a string or JSON format and publish it to the declared RabbitMQ queue:
```python
import json

for show in schedule_data:
show_message = json.dumps(show)
channel.basic_publish(exchange='',
routing_key='tvmaze_schedule',
body=show_message)
```

After successfully publishing the data, close the connection to RabbitMQ to free resources:
```python
connection.close()
```
Ensure to handle exceptions and errors in the code to make it robust and add logging for monitoring.

By following these steps, you will be able to move data from the TVmaze schedule to RabbitMQ without relying on third-party connectors or integrations.