In fact, attaching the base stand to your new TCL Smart TV is a straightforward process but important to do carefully. 

By following the instructions to properly attach the base stand, you'll have your TCL Smart TV upright and ready to turn on in no time. 

Make sure to place the TV on a stable surface, secure all cables, complete the initial setup, and install any system updates. Once done, you can start enjoying streaming your favorite shows and movies on your new TCL Smart TV! 

Here are 10 troubleshooting tips for attaching the base stand to a TCL Smart TV:

1. Make sure you have the correct base stand model for your specific TCL Smart TV model. The base stands are not interchangeable between TV models.

2. Double check that you have all the parts in the box including the base stand legs, screws, and screwdriver. If any parts are missing, contact TCL support for replacements.

3. Ensure the TV is placed on a cushioned, flat surface before attaching the base stand. An uneven or slippery surface could cause damage or injury.

4. Have someone help hold and stabilize the TV so it does not move around while you're attaching the base stand. Trying to attach the base stand alone on a wobbly TV could be difficult and lead to damage.

5. Match up the correct screw holes and mounting brackets on the base stand legs to the holes on the bottom of the TV. Forcing the screws into the wrong holes could strip the threads or break off pieces.

6. Make sure the screw holes on the TV are clear of any debris before inserting the screws. Any obstructions could prevent the screws from tightening properly.

7. Do not overtighten the screws when attaching the base stand. Only tighten until the base stand is firmly attached. Overtightening could cause damage to the TV casing or base stand.

8. Ensure the TV is balanced properly on its base stand and will not tip over easily. If it does not seem stable or level on the surface, you may need to adjust the stand to balance the TV.

9. Double check that all cables have been securely connected to the TV before turning it on. Loose cables could present a tripping hazard or prevent the TV from turning on.

10. If the base stand seems wobbly or the TV will not remain upright after following all instructions, the base stand may be defective. Do not continue using the TV if it will not remain secure on the base stand.

If you run into any issues attaching the base stand or setting up your TV, you can consult your product manual or contact TCL customer support via https://support.tcl.com/contact-us for further assistance.