October has begun: it's time for much anticipated new seasons of lots of The CW's and HBO's TV shows. This is a reminder of all the datesof this week's returning and new TV Series. Let's also recap the latest news and previews of Arrow, Divorce, No Tomorrow and many more.

The CW enters in the TV ratings race with The Flash, No Tomorrow, Arrow & Frequency

The CW will return to air original material, while ABC, CBS, NBC and FOX will enter in their third week of this Fall season. On Tuesday, The Flash and No Tomorrow will begin. The Flash season 3 will welcome Harry Potter's Tom Felton in the role of the CSI's Julian Dorn.

Have a look at the latest The Flash season 3 preview:

The upcoming new dramedy, No Tomorrow will tell the story of this strange encounter between an ordinary woman Evie, and Xavier who believes that the world will end in a few months. It will start on Tuesday October, 4th.

Arrow will start its fifth season on Wednseday at 8.00 p.m. The Stephen Amell's TV Show has always been a steady and strong performer. This season 5 seems a lot tenser and it will not include any sort of wizards or magic: back to Arrow's roots. Have a look at Arrow season 5 promo:

Frequency will tell the story of Raimy Sullivan, a detective whose father died misteriously. She will start to have contacts with him, but can she change the past without affecting the future?

It will start on Wednesday, October 5th.

HBO: after Westworld, it's time for Parker's Divorce

Westworld has just started on HBO. On Sunday October, 2nd the Nolan's show has begun its run. Critics were positive about the pilot, but will it attract enough viewers? The pilot's costs were huge. Have a look at Westworld 1x02 promo:

Next sunday, Divorce will debut on HBO.

Sarah Jessica Parker and Thomas Haden Church star in this new HBO comedy about a couple who decide to split and all the consequences of the separation. We are happyto have the actress back on TV. Have a look at Divorce season 1 promo:

The CW's Fight Club preview

The CW is promoting the hell out of its returning shows. Considering that they will air 4 DC's TV series- Supergirl, Legends of Tomorrow, Arrow and The Flash, they have planned a 4-ways crossover in November and they are already promoting the new "Fight Club" made in The CW.

Have a look at the preview:

That's it: lots of new TV shows and returning TV series will debut in this first week of October. Don't miss my follow-up article about another much anticipated returning show: Twin Peaks.