how do I set up a simple home network?

Why are you looking to set up a home network. What are you looking to achieve with this? How is it more advantageous than how things currently are?

Technically you already have one.  If you log into your router you should see the different IPs for the different client devices.  From the PC you should be able to ping another device as long as it's on and connected.

Be aware that TV's require quite some bandwidth, if all  are running then file transfers may be hampered or vice versa.
So your bandwidth capacity need to be matched by consumption.

Also be aware that how WiFi works is that depending on setup standards (a/b/g/n) the WiFi signal will regularly be tuned down to the lowest bandwidth available for the class involved, to allow devices that don't support the highest speeds to also take part in the conversation.
This is about any device within reach of the AP.  If a low speed device  IS found, the bandwith will stay at the lowest common bandwidth setting.
(which can be as low as 1Mbps....)

It might be much better to run cables to hardware that is stationary anyway.  (also from a privacy & security perspective, why transmit data about systems availibility).

I use my own Router (and Fred will know that). It can be an entry level commercial Wired / Wireless router. That will work fine. I do this myself.

Fred,
What do you mean by this statement?

First, since the ISP modem/router may change without notice, it's a good idea to protect yourself from the agony that may ensue.

Then you suggest it is best to purchase your own modem and router.  I am not sure that is a good idea for me because the internet and
the televisions are all serviced by a Bell single unit modem router provided by Bell in Toronto.  In addition I have a special 4K box for one the TVs.  

Does it mean that the ISP might decide to provide a new modem/router for internet service?

Thanks,
capreol

The ISP might need to provide a new modem due to modem failure.  It's not guaranteed to be the same.
You may change ISPs.
etc.

I don't see any downside in having your own router that runs downstream from the ISP modem or modem/router.

Fred he said bell, unlike Rogers is not plug and play if he buys a new router--- he would have to plug one end of the Ethernet in the wan port of his router and the other end into the LAN port of the bell router, then login into the bell router and put his router ip that it gets from bell into advanced DMZ, to pick up the wan IP of the bell router, then log into his router and change the mode from wan to PPOE and put in his username and password he got from bell or else he will have no internet from his router, then reboot both device. then he can proceed with what you said in setting up his network.

Curious though, you already have a network setup what exactly are you trying to achieve?

Bell (the ISP) will normally give you a router for Internet as well. You may wish to keep Internet and TV separate unless you have some need to combine them.

he would have to plug one end of the Ethernet in the wan port of his router and the other end into the LAN port of the bell router

Yes.  Of course.  I believe I said that already.

then login into the bell router and put his router ip that it gets from bell into advanced DMZ,

I see no reason for this.  It appears to assume something about the type of IP address that the new router gets from the ISP modem/router.  In my description, I made no distinction between a public address and a private address coming from the ISP DHCP.  That lack of distinction was entirely on purpose.

to pick up the wan IP of the bell router, then log into his router and change the mode from wan to PPOE and put in his username and password he got from bell or else he will have no internet from his router

It appears that you assume the ISP router is in some kind of transparent mode.  I didn't make that assumption.

In my simple-minded view, if the connection requires PPPOE then leave that up to the ISP modem.  The ISP modem can either provide a (usually single) public IP address downstream or, if there's a router function, provide a private subnet downstream.  Either one should work going into another router WAN expecting DHCP.

Also, I think we need to be careful about what we mean by "TV". Because the TV is coming over the WiFi, then it appears that it's networked.  But I don't know what a "special 4K box" *is*.  And probably being in Canada helps.  So please forgive my ignorance as I'm in the US.

@ Fred I'm not picking on you just pointing out the steps, he'd have to take to make it happen, on top of what you said

once having bell Fibe (it is NOT Fibre)  The TV boxes use a different network although it is wireless it is not the wireless you get for computing (802.11x)   ISP's are notorious for not updating the firmware on the boxes even though the same (usually ARRIS) boxes have firmware updates to mitigate vulnerabilities.

Unless you put the box in passthrough mode you don't need to configure your personally owned router for ppoe connections, simply set the Fibe Box to set the ip of your router in the DMZ, after connecting the WAN port of the router to any of the lan ports on the Fibe Box. This way you can eliminate any WIRELESS Ethernet charges from BELL (if applicable) and you can change ISP's without having to reconfigure your settings.

@ David that would be true on the older box, the new bell router does not have the passthru option and if they push the new firmware
it removes the passthru option also, thanks for the correction fibre=fibe

Thanks to all the experts for your assistance.  Much appreciated.
capreol

It should be fairly simple to set up with all the help above.

Remember that Windows 10 has gotten rid of homegroup and you do need devices with user names and passwords.

Thanks once again to all the experts for assistance.
capreol

You are very welcome and I was happy to help you.