Directv Tailgating

I would assume that as long as you have an appropriate data plan and can receive a signal, your DirecTV via Internet would work anywhere in the USA.

What I'd probably do is get a dedicated phone or tablet and something like a Chromecast to cast it to your TV since the TV probably can't receive an internet signal by itself.

No, you don't need to notify anyone.

Local channels may change depending on your current location. As an example, I believe Hulu keeps the same local channels based off billing information. Peacock, OTOH, will switch to the local NBC based off where someone is.

So yeah, you'd still get NBC, ABC, CBS and Fox, but they might not be the same where you live if you tailgate far from home.

DirecTV (satellite) and DirecTV via Internet are two separate services. One does not affect the other.

You do not need to notify DirecTV of using for tailgating. If you were moving, or installing in a 2nd home/vacation cabin, that would be another matter. That is because locals, RSNs, and taxes you are required to pay are based on your physical service address (which is why two permanent locations at the same time should be 2 accounts).

Be aware that once you travel outside your home spot beam you lose access to locals and RSNs. You would plug a regular antenna into your TV to get whatever locals are within range.

Regarding the other service "via Internet", locals are supposed to be determined by the billing address. You can change that up to 4 times a year. Though be cautious as if your home IP address changes, that is counted as a move. When traveling it depends on the device you use for streaming if it has location services or not which affects getting locals.

If you have other TVs, remember that any Mini Genies cannot work with the Genie (HR54) gone as they are clients, not receivers. Any other receivers/HDDVRs, such as HR24 or H24 work as normal. If you have a mix of boxes, usually recommend the Genie stays home and take one of the other dedicated ones for ease of use.

You need a SWM dish with the HR54 and an active sat account.

If you canceled your sat account, then all boxes are returned since they are not customer owned. (or recycled if non-returnable models) They cannot be used without an active account and there is no way to transfer to "via Internet" as different services and technologies.